The requirement to install the game is likely scaring folks off. I recommend looking into packaging it up to be more approachable.

Lack of English is likely scaring folks off. Worth finding someone to translate your game for LD.

Controls were not good, which when mixed with the level design choices you made made a very aggravating game but not in the good way. "I WANT TO BE THE GUY" and "Super Meat Boy" are HARD games that make you rage, but their control scheme is solid, you always know "It's not the game's fault", but that isn't the case here.

WASD + Spacebar works for FPS style games, but I recommend using Arrow Keys, and [Z],[X] for 2D when you can.

Thanks for the submission!