diff --git a/assets/levels/R3/128.png b/assets/levels/R3/128.png
index 53c8681..d51a815 100644
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diff --git a/assets/levels/R3/Z2.tmx b/assets/levels/R3/Z2.tmx
index 01e11ce..3c4a2ff 100644
--- a/assets/levels/R3/Z2.tmx
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index 1694e7d..a6db97d 100644
--- a/assets/levels/R3/tilemap128.tmx
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diff --git a/assets/levels/R3/tiles16.tsx b/assets/levels/R3/tiles16.tsx
index 0d528a6..78f8359 100644
--- a/assets/levels/R3/tiles16.tsx
+++ b/assets/levels/R3/tiles16.tsx
@@ -48,6 +48,13 @@
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 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
diff --git a/assets/levels/R8/tiles16.tsx b/assets/levels/R8/tiles16.tsx
index 36548c7..a803435 100644
--- a/assets/levels/R8/tiles16.tsx
+++ b/assets/levels/R8/tiles16.tsx
@@ -1223,15 +1223,15 @@
  </tile>
  <tile id="444">
   <objectgroup draworder="index" id="2">
-   <object id="1" x="16.087" y="2.91304">
-    <polygon points="0,0 -0.0869565,13.087 -9.08696,13.0435"/>
+   <object id="2" x="15.9565" y="4.95652">
+    <polygon points="0,0 0.0434783,11.0435 -8.95652,10.9565"/>
    </object>
   </objectgroup>
  </tile>
  <tile id="445">
   <objectgroup draworder="index" id="2">
-   <object id="1" x="3" y="0">
-    <polygon points="0,0 13,0 13,16 -3,16 -3,3.08696"/>
+   <object id="2" x="3.04348" y="-0.0434783">
+    <polygon points="0,0 12.9565,0.0434783 12.9565,16.0435 -3.04348,16.0435 -3,4.26087"/>
    </object>
   </objectgroup>
  </tile>
diff --git a/src/player.c b/src/player.c
index b6cd485..c0850cc 100644
--- a/src/player.c
+++ b/src/player.c
@@ -474,7 +474,8 @@ _player_update_collision_tb(Player *player)
             // like this for now
             else player->angle = player->ev_grnd1.angle;
 
-            int32_t deg = (player->angle * (360 << 12) >> 24);
+            // TODO: FIX THIS!!!!!
+            int32_t deg = (abs(player->angle) * (360 << 12) >> 24);
 
             // Set ground speed according to X and Y velocity,
             // and plaform angle
@@ -629,7 +630,7 @@ player_update(Player *player)
 #define GSMODE_ANGLE_FLOOR_RIGHT    0x01d5 // ~41° (original: 45°)
 #define GSMODE_ANGLE_CEIL_MIN       0x0600 // 135°
 #define GSMODE_ANGLE_CEIL_MAX       0x0a00 // 225°
-#define GSMODE_ANGLE_FLOOR_LEFT     0x0e2b // ~318° (original: 315°)
+#define GSMODE_ANGLE_FLOOR_LEFT     0x0e40 // ~318° (original: 315°)
     
     // Original collision mode ranges
     if((GSMODE_ANGLE_FLOOR_LEFT <= p_angle) || (p_angle <= GSMODE_ANGLE_FLOOR_RIGHT))
@@ -652,10 +653,10 @@ player_update(Player *player)
     /* PUSH SENSORS COLLISION MODES */
     // As opposed to ground sensors, here the L.Wall and R.Wall modes are
     // well-defined.
-#define PSMODE_ANGLE_RWALL_MIN    0x01d5 // ~41°
-#define PSMODE_ANGLE_RWALL_MAX    0x0600 // 135°
-#define PSMODE_ANGLE_LWALL_MIN    0x0a00 // 225°
-#define PSMODE_ANGLE_LWALL_MAX    0x0e2b // ~318°
+#define PSMODE_ANGLE_RWALL_MIN    0x014e // ~41°
+#define PSMODE_ANGLE_RWALL_MAX    0x0579 // 135°
+#define PSMODE_ANGLE_LWALL_MIN    0x0a87 // 225°
+#define PSMODE_ANGLE_LWALL_MAX    0x0db9 // ~318°
 
     if((p_angle > PSMODE_ANGLE_LWALL_MAX) || (p_angle < PSMODE_ANGLE_RWALL_MIN))
         player->psmode = CDIR_FLOOR;
@@ -663,9 +664,9 @@ player_update(Player *player)
         player->psmode = (player->angle >= 0)
             ? CDIR_RWALL
             : CDIR_LWALL;
-    else if((p_angle > PSMODE_ANGLE_RWALL_MAX) && (PSMODE_ANGLE_LWALL_MIN < p_angle))
+    else if((p_angle > PSMODE_ANGLE_RWALL_MAX) && (p_angle < PSMODE_ANGLE_LWALL_MIN))
         player->psmode = CDIR_CEILING;
-    else if((PSMODE_ANGLE_LWALL_MIN <= p_angle) && (p_angle <= PSMODE_ANGLE_LWALL_MAX))
+    else if((PSMODE_ANGLE_LWALL_MIN >= p_angle) && (p_angle <= PSMODE_ANGLE_LWALL_MAX))
         player->psmode = (player->angle >= 0)
             ? CDIR_LWALL
             : CDIR_RWALL;
@@ -852,6 +853,7 @@ player_update(Player *player)
             : Y_GRAVITY;
     } else {
         if(input_pressed(&player->input, PAD_CROSS) && player->action != ACTION_SPINDASH) {
+            // TODO: Review jump according to angle
             player->vel.vx -= (Y_JUMP_STRENGTH * rsin(player->angle)) >> 12;
             player->vel.vy -= (Y_JUMP_STRENGTH * rcos(player->angle)) >> 12;
             player->grnd = 0;
diff --git a/src/screen_level.c b/src/screen_level.c
index da6bece..d32c330 100644
--- a/src/screen_level.c
+++ b/src/screen_level.c
@@ -478,7 +478,7 @@ screen_level_draw(void *d)
                  ,
                  player.vel.vz,
                  player.vel.vx, player.vel.vy,
-                 abs(player.angle),
+                 player.angle,
                  (player.gsmode == CDIR_FLOOR)
                  ? "FL"
                  : (player.gsmode == CDIR_RWALL)
@@ -497,7 +497,7 @@ screen_level_draw(void *d)
                  : (player.psmode == CDIR_CEILING)
                  ? "CE"
                  : "  ",
-                 (int32_t)((player.angle * (360 << 12)) >> 24), // angle in deg
+                 (int32_t)(((int32_t)player.angle * (int32_t)(360 << 12)) >> 24), // angle in deg
                  player.pos.vx, player.pos.vy,
                  player.action
             );
diff --git a/tools/cookcollision.py b/tools/cookcollision.py
index 3411118..d64dda1 100755
--- a/tools/cookcollision.py
+++ b/tools/cookcollision.py
@@ -74,6 +74,7 @@ def get_height_mask(d: Direction, points):
     # Of course, if pointing downwards, we go from left to right, top to bottom.
     # If using any other direction... flip it accordingly.
     heightmask = []
+    last_pos = 0
     angle = 0
     for pos in range(16):
         found = False
@@ -94,15 +95,25 @@ def get_height_mask(d: Direction, points):
             if point_in_geometry([x, y], points):
                 found = True
                 heightmask.append(height)
+                if (pos > 0) and (heightmask[pos - 1] != height):
+                    last_pos = pos
                 break
         if not found:
             heightmask.append(0)
 
     # Build vector according to direction
-    # and heightmask
+    # and heightmask.
+    # We have a somewhat naive approach here to determine angle: when we have
+    # a platform that, at some point, keeps its height, we ignore said height
+    # change and only consider the steep part.
+    # This is necessary because some tiles have a really steep angle in a
+    # certain direction; angles are a property of the entire tile on a specific
+    # mode.
+    # This was causing some almost-square tiles with really steep angles to
+    # have very small angles (see R3, tile 76).
     vector = [0, 0]
     dirvec = [1, 0]
-    delta = heightmask[0] - heightmask[-1]
+    delta = heightmask[0] - heightmask[last_pos]
     if d == Direction.DOWN:
         # Vector points left to right
         vector = [16, delta]
@@ -124,6 +135,9 @@ def get_height_mask(d: Direction, points):
     angle = math.atan2(dirvec[1], dirvec[0]) - math.atan2(vector[1], vector[0])
     # Angles are always converted to degrees and rounded
     # to zero decimals
+    if angle < 0:
+        angle += math.tau
+
     angle = to_psx_angle(angle)
     return (heightmask, angle)