best game I've played! :D
suggestions:
- right now if the character is facing right, and you press shift and A at the "same time", even tho you pressed A to move left, the character moves right because you pressed shift before A. This is a little annoying, so it'd be nice if there were a few frames after pressing shift where you can change direction. (aka add coyote time/input buffering)
- in the 3rd level (where you climb up high), the final checkpoint is difficult to trigger when playing the game. I was fustrated when I was like "WHERE IS THE NEXT DAMN CHECKPOINT" because every time I passed that area i never triggered the checkpoint, so I thought there was no checkpoint and kept being annoyed when I got sent super far back in the level each time.
overall though, this is AN AWESOME GAME!! :D well done! :D :D :D