Hey,
First of all thanks for the feedback!
Good ideas on the game over menu. A mini-map that show the point you died at would be nice feedback for the player. I'll definitely be looking for ways to make my future jam games more compulsive. That's something I never really considered before but it makes sense for player retention and whatnot.
I definitely had a feeling the camera was too tight around the player. I originally had the ninja look more cartoony and had the sprite size as 8x8. I changed it to 16x16 because I was having trouble articulating movement with that small of a tile size (I'm not an artist by any means :) ). Something in the middle would have been better in retrospect.
Glad the experience was overall positive and thanks again for taking the time to play and provide feedback. I really appreciate it!