There's bug on desert stage, if you start fast, the sand will rise very quickly making it impossible to get out. But if you wait a bit the sand will rise at normal levels and you can get out.
cont.
12) Dashing when sliding down, makes character think they are wall jumping, and cannot dash jump (depending on the pixel/direction).
13) progressive power up when charging?
14) Spider on jungle stage needs more HP
15) Why do some bosses have auto-run when you enter boss room but others do not? I.E. turtle/snapper