Well, i got to say this was quite a nice experience, not the most polish kind of game but it have enough charm on it own for me to enjoy. this is the problem i have found so far :
1. On the start of the game it possible to just jump out of the map by just keep moving to the left.
2. The platform placement above the muscleman boss door is a bit to tight to go into without getting hit.
3. It possible to use wing on the exact time the jump upward momentum stop to add more height, because of that i can reach the skinman without first activating the platform near the health powerup. and when i try to fight the boss, it just stay mid-air not doing anything.