Really cool game! The concept is excellent and the use of the limitation is strong.I would bump up the players walk speed a good bit, I like hard games but this felt extremely unwinnable most of the time as the enemies just get on top of you so quick and take a lot of shots to kill. Would love to play a more pollished version of this! Also you used Godot to make this so you should be able to export for web. It'll get a lot more plays that way, people are unlikely to download files for these things sadly.
Anyway, good job!