I caught a bug where I was transported underneath that vending machine(?) after I died and couldn't escape. the wall jumping is a bit buggy as well, which some other commenters mentioned, and the jumping sound is a little too loud in my opinion. I think the character should jump higher, or less far, with every keystroke; it feels like the ratio of height to length on the characters' jumping is off. also "you loose" should be spelled "you lose".
all that said, this is a very cute game with potential. I enjoy the puzzle aspect of having to touch those boxes, the different puzzles and difficulties presented in each level, and the art, music and cast of characters is a great mix of original and classic. I want to finish each level to see what the next level looks like- a fun adventure!