--- monsterz.py
+++ monsterz.py
@@ -829,10 +829,10 @@
             pass
         else:
             for x in range(4):
-                for y, p in enumerate(alpha[x]):
-                    alpha[x][y] = p * x / 4
-                for y, p in enumerate(alpha[406 - x - 1]):
-                    alpha[406 - x - 1][y] = p * x / 4
+                for y in range(len(alpha[x])):
+                    alpha[x][y] = alpha[x][y] * x / 4
+                for y in range(len(alpha[406 - x - 1])):
+                    alpha[406 - x - 1][y] = alpha[406 - x - 1][y] * x / 4
             for col in alpha:
                 l = len(col)
                 for y in range(4):
@@ -1287,10 +1287,10 @@
             pass
         else:
             for x in range(10):
-                for y, p in enumerate(alpha[x]):
-                    alpha[x][y] = p * x / 12
-                for y, p in enumerate(alpha[406 - x - 1]):
-                    alpha[406 - x - 1][y] = p * x / 12
+                for y in range(len(alpha[x])):
+                    alpha[x][y] = alpha[x][y] * x / 12
+                for y in range(len(alpha[406 - x - 1])):
+                    alpha[406 - x - 1][y] = alpha[406 - x - 1][y] * x / 12
             del alpha
             scroll.unlock()
         system.blit(scroll, (13, 437))