diff --git a/Throot.py b/Throot.py
index 0b64b1e..0b3a2c7 100644
--- a/Throot.py
+++ b/Throot.py
@@ -10,7 +10,7 @@ from random import randrange
 from Games.Throot.artrepository import OBSTACLES
 from Games.Throot.player import Player
 from Games.Throot.map import ObstacleSlice, OBSTACLE_SLICES
-from Games.Throot.sprites import update_entities
+from Games.Throot.sprites import Obstacle, update_entities
 from Games.Throot.constants import CONST_FPS
 
 class GameManager:
@@ -96,8 +96,14 @@ class GameLoop(Room):
         prev_depth = self.current_depth
         self.diving_velocity += self.diving_accel * tpf
         self.current_depth += self.diving_velocity * tpf
+        
+        #print("%f (%f)" % (self.current_depth, self.current_depth % ObstacleSlice.height))
 
-        if self.current_depth % ObstacleSlice.height < prev_depth % ObstacleSlice.height:
+        #print("%f -> %f: %f -> %f" % (prev_depth, self.current_depth, prev_depth % ObstacleSlice.height, self.current_depth % ObstacleSlice.height))
+        if (
+            self.current_depth > prev_depth and self.current_depth % ObstacleSlice.height < prev_depth % ObstacleSlice.height
+            or self.current_depth < prev_depth and self.current_depth % ObstacleSlice.height > prev_depth % ObstacleSlice.height
+            ):
             self.current_obstacle_slice = self.get_obstacle_slice()
 
         self.player.update_phys(self.current_depth, prev_depth)
@@ -110,6 +116,9 @@ class GameLoop(Room):
         for entity in self.entities:
             if not entity.update(tpf, self.current_depth, prev_depth):
                 to_remove.add(entity)
+            elif entity.intersects_pixel(self.player.xsub, self.player.ysub):
+                if isinstance(entity, Obstacle):
+                    print("Hit!")
         self.entities -= to_remove
         
         self.score = int(self.current_depth * 10)
@@ -118,7 +127,7 @@ class GameLoop(Room):
         # Draw the entities
         for entity in self.entities:
             entity.render(tpf, self.current_depth, prev_depth)
-        self.player.update_draw(self.current_depth, prev_depth)
+        self.player.update_draw(self.player.y)
 
         thumby.display.drawText(str(self.score), thumby.display.width - (len(str(self.score)) + 2) * 5, 1, 1)
         thumby.display.update()
diff --git a/artrepository.py b/artrepository.py
index 127633d..51ea28a 100644
--- a/artrepository.py
+++ b/artrepository.py
@@ -4,28 +4,21 @@ SpriteImage = namedtuple("SpriteImage", ["image", "collision", "width", "height"
 
 # BITMAP: width: 8, height: 8
 skull = SpriteImage(
-    bytearray([227,29,102,126,38,222,221,227]),
+    bytearray([0,28,102,126,38,30,28,0]),
     None,
     8,
     8
 )
 # BITMAP: width: 8, height: 8
 pizza = SpriteImage(
-    bytearray([127,63,95,111,87,107,125,0]),
+    bytearray([0,0,64,96,80,104,124,0]),
     None,
     8,
     8
 )
 # BITMAP: width: 10, height: 10
 boulder = SpriteImage(
-    bytearray([31,175,119,183,107,251,115,7,15,31,3,2,1,0,1,0,0,0,0,2]),
-    None,
-    10,
-    10
-)
-# BITMAP: width: 10, height: 10
-ball = SpriteImage(
-    bytearray([135,43,85,170,124,254,122,229,123,135,3,3,2,0,1,0,1,2,3,3]),
+    bytearray([224,80,136,72,148,4,140,248,240,224,0,1,2,3,2,3,3,3,3,1]),
     None,
     10,
     10
@@ -39,28 +32,21 @@ ball = SpriteImage(
 )
 # BITMAP: width: 10, height: 10
 steve = SpriteImage(
-    bytearray([0,240,252,92,188,188,92,252,240,0,0,1,1,0,0,0,0,1,1,0]),
+    bytearray([255,1,225,249,185,121,121,185,249,225,1,255,15,8,11,11,8,9,9,8,11,11,8,15]),
     None,
-    10,
-    10
+    12,
+    12
 )
 # BITMAP: width: 11, height: 8
 spaceinv = SpriteImage(
-    bytearray([143,231,130,73,67,195,67,73,130,231,143]),
-    None,
-    11,
-    8
-)
-# BITMAP: width: 11, height: 8
-spaceinv2 = SpriteImage(
-    bytearray([248,103,130,201,195,195,195,201,130,103,248]),
+    bytearray([112,24,125,182,188,60,188,182,125,24,112,7,152,125,54,60,60,60,54,125,152,7]),
     None,
     11,
     8
 )
 # BITMAP: width: 11, height: 8
 mathroot = SpriteImage(
-    bytearray([255,255,239,207,159,63,1,193,249,249,255]),
+    bytearray([0,0,16,48,96,192,254,62,6,6,0]),
     None,
     11,
     8
@@ -68,56 +54,68 @@ mathroot = SpriteImage(
 #/ = bytearray([255,255,239,239,72,10,192,10,72,239,239])
 # BITMAP: width: 11, height: 8
 robot = SpriteImage(
-    bytearray([255,255,239,239,72,10,192,10,72,239,239]),
+    bytearray([0,16,16,183,245,63,245,183,16,16,0]),
     None,
     11,
     8
 )
 # BITMAP: width: 11, height: 8
 dinoskull = SpriteImage(
-    bytearray([240,246,246,245,238,237,219,221,235,247,255]),
+    bytearray([15,9,9,10,17,18,36,34,20,8,0]),
     None,
     11,
     8
 )
 # BITMAP: width: 11, height: 8
 dinojaw = SpriteImage(
-    bytearray([193,190,190,62,118,242,126,249,87,239,31]),
+    bytearray([62,65,65,193,137,13,129,6,168,16,224]),
     None,
     11,
     8
 )
 # BITMAP: width: 11, height: 8
 dinospine = SpriteImage(
-    bytearray([199,187,215,187,199,199,187,215,187,199,255]),
+    bytearray([56,68,40,68,56,56,68,40,68,56,0]),
     None,
     11,
     8
 )
 # BITMAP: width: 11, height: 8
 bone = SpriteImage(
-    bytearray([215,171,187,215,215,215,215,215,187,171,215]),
+    bytearray([40,84,68,40,40,40,40,40,68,84,40]),
     None,
     11,
     8
 )
 # BITMAP: width: 70, height: 40
 bigdinohead = SpriteImage(
-    bytearray([255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,127,127,127,127,127,127,127,127,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,231,193,157,124,254,118,243,243,225,225,243,159,158,140,253,153,243,247,207,159,63,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,249,250,247,246,244,245,243,245,243,245,243,245,243,245,251,253,254,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255]),
+    bytearray([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,0,0,128,128,128,128,128,128,128,128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,24,62,98,131,1,137,12,12,30,30,12,96,97,115,2,102,12,8,48,96,192,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,6,5,8,9,11,10,12,10,12,10,12,10,12,10,4,2,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]),
     None,
     70,
     40
 )
 # BITMAP: width: 70, height: 40
 bigboneddiag = SpriteImage(
-    bytearray([255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,127,127,63,223,223,63,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,252,251,251,251,247,239,222,189,123,247,239,223,191,127,127,127,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,254,241,239,239,243,251,251,252,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255]),
+    bytearray([0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,128,128,192,32,32,192,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            3,4,4,4,8,16,33,66,132,8,16,32,64,128,128,128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,0,0,0,0,0,1,14,16,16,12,4,4,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]),
     None,
     70,
     40
 )
 # BITMAP: width: 70, height: 40
 bigdoritoobstacle = SpriteImage(
-    bytearray([254,244,253,219,251,247,175,207,223,223,223,191,63,127,127,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,223,255,247,255,255,255,249,255,239,254,254,252,252,249,219,243,183,167,239,207,223,191,63,127,127,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,127,255,127,191,95,191,95,191,87,47,87,47,151,175,155,151,203,215,235,231,235,231,235,231,235,231,235,231,234,246,245,241,243,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,127,127,127,127,127,127,127,127,127,63,191,191,191,250,249,248,253,252,254,254,254,254,255,255,255,255,255,255,255,255,255,255,255,255,127,127,127,127,127,127,127,127,127,127,127,127,191,191,159,223,223,223,223,223,239,239,239,239,239,239,231,231,243,123,251,253,254,254,254,254,255,239,251,255,255,255,255,251,255,253,251,254,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,254,253,253,253,253,253,249,251,251,251,245,243,237,235,229,235,215,203,223,215,203,215,222,219,203,213,203,215,207,215,207,215,223,207,215,207,215,159,151,175,183,171,183,175,183,191,159,55,127]),
+    bytearray([1,11,2,36,4,8,80,48,32,32,32,64,192,128,128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,0,0,0,32,0,8,0,0,0,6,0,16,1,1,3,3,6,36,12,72,88,16,48,32,64,192,128,128,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
+            0,128,0,128,64,160,64,160,64,168,208,168,208,104,80,100,104,52,40,20,24,20,24,20,24,20,24,20,24,21,9,10,14,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,128,128,128,128,128,128,128,128,128,192,64,64,64,
+            5,6,7,2,3,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,128,128,128,128,128,128,128,128,128,128,128,128,64,64,96,32,32,32,32,32,16,16,16,16,16,16,24,24,12,132,4,2,1,1,1,1,0,16,4,0,0,0,0,4,0,2,4,1,0,
+            0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,2,2,2,2,6,4,4,4,10,12,18,20,26,20,40,52,32,40,52,40,33,36,52,42,52,40,48,40,48,40,32,48,40,48,40,96,104,80,72,84,72,80,72,64,96,200,128]),
     None,
     70,
     40
@@ -131,6 +129,6 @@ leaf = SpriteImage(
 )
 
 UNDERGROUND_OBSTACLES = [skull, pizza, boulder, ball, steve, mathroot, robot, dinoskull, dinojaw, dinospine, bone, bigdinohead, bigboneddiag, bigdoritoobstacle]
-OVERGROUND_OBSTACLES = [spaceinv, spaceinv2, leaf]
+OVERGROUND_OBSTACLES = [spaceinv, leaf]
 
 OBSTACLES = UNDERGROUND_OBSTACLES + OVERGROUND_OBSTACLES
diff --git a/player.py b/player.py
index 783a911..08b0235 100644
--- a/player.py
+++ b/player.py
@@ -65,17 +65,17 @@ class Player:
         self.y = int(self.ysub)
         
         # animation
-        self.anim.update_phys(self.x, self.y, CONST_PL_SCREEN_Y)
+        self.anim.update_phys(self.x, self.y, CONST_PL_SCREEN_Y, current_depth)
         
-    def update_draw(self, current_depth, prev_depth):
+    def update_draw(self, plworldy):
         # debug draw
         if self.debugvisible:
             pix_x = self.x
-            pix_y = int(current_depth - self.y)
+            pix_y = int(self.y - plworldy + 20)
             thumby.display.setPixel(pix_x, pix_y, self.isdecend)
         
         # animation
-        self.anim.update_draw(current_depth, prev_depth, self.isdecend)
+        self.anim.update_draw(plworldy - 20, self.isdecend)
         
 
 class Camera:
@@ -101,7 +101,9 @@ class PlayerAnimation:
         self.debugrandomrange = self.RANDOM_RANGE
         self.debugposrange = self.POS_RANGE
     
-    def update_phys(self, plworldx, plworldy, plscreeny):
+    def update_phys(self, plworldx, plworldy, plscreeny, current_depth):
+        
+        #print(plworldx, plworldy, plscreeny, current_depth)
         
         ### exit if player y pos less than random range
         # # debug change random range
@@ -157,19 +159,21 @@ class PlayerAnimation:
         # self.poslist.append((plworldx, plworldy))
         
         ### remove the fist item in the list if its full line is off screen
-        #if self.poslist[1][self.POS_Y] < plworldy - plscreeny:
-        #    self.poslist.pop(0)
+        if self.poslist[1][self.POS_Y] < plworldy - plscreeny:
+            self.poslist.pop(0)
             
         #print(len(self.poslist))
             
-    def update_draw(self, current_depth, prev_depth, isdecend=1):
+    def update_draw(self, topleft, prev_depth, isdecend=1):
         ### draw line from first position to next
         
+        #print(topleft)
+        
         for i in range(len(self.poslist) - 1):
             thumby.display.drawLine(
                 int(self.poslist[i][self.POS_X]),
-                int(current_depth - self.poslist[i][self.POS_Y]), 
+                int(self.poslist[i][self.POS_Y] - topleft), 
                 int(self.poslist[i + 1][self.POS_X]),
-                int(current_depth - self.poslist[i + 1][self.POS_Y]),
+                int(self.poslist[i + 1][self.POS_Y] - topleft),
                 isdecend
             )
diff --git a/sprites.py b/sprites.py
index f37ef6f..06e73c2 100644
--- a/sprites.py
+++ b/sprites.py
@@ -33,8 +33,8 @@ class Entity:
             return False
         if loc_x < self.x or loc_x >= self.x + self.width or loc_y < self.y or loc_y >= self.y + self.height:
             return False
-        rel_x = loc_x - self.x
-        rel_y = loc_y - self.y
+        rel_x = int(loc_x - self.x)
+        rel_y = int(loc_y - self.y)
         return bool((self.collision[rel_x] >> (self.height - rel_y)) & 1)
 
     def can_render(self, current_depth: int) -> bool:
@@ -124,14 +124,18 @@ def update_entities(current_slice: ObstacleSlice, current_depth: int, prev_depth
     # Local y relative to the top of the slice
     slice_y = (current_depth) % ObstacleSlice.height
     slice_prev_y = (prev_depth) % ObstacleSlice.height
-    if slice_prev_y > slice_y:
+    if prev_depth < current_depth and slice_prev_y > slice_y:
         slice_prev_y -= ObstacleSlice.height
+    elif current_depth < prev_depth and slice_y > slice_prev_y:
+        slice_prev_y += ObstacleSlice.height
+    min_y = min(slice_prev_y, slice_y)
+    max_y = max(slice_prev_y, slice_y)
     spawned = set()
     for entity in current_slice.obstacle_map:
         # The position the entity should spawn at, relative to the slice top
         entity_y = entity[1]
-        if entity_y >= slice_prev_y and entity_y < slice_y:
+        if entity_y >= min_y and entity_y < max_y:
             sprite_image = OBSTACLES[entity[2]]
             sprite = thumby.Sprite(sprite_image.width, sprite_image.height, sprite_image.image, 0, 0, 0, entity[3], entity[4])
-            spawned.add(Obstacle(entity[0], entity_y + current_depth // ObstacleSlice.height * ObstacleSlice.height, sprite_image.width, sprite_image.height, sprite_image.collision, sprite))
+            spawned.add(Obstacle(entity[0], entity_y + current_depth // ObstacleSlice.height * ObstacleSlice.height, sprite_image.width, sprite_image.height, sprite_image.collision or sprite_image.image, sprite))
     return spawned