Not sure if I am bad with this game, but it's not clear what one should do. You use all your ammo with first 3 enemies, and then what? Enemies do not make damage, you can jump around without any problem.
Moreover, the commands on the console works in a weird way. You get some new commands by typing help without any obvious reason, just advancing the game or what? And if you toggle the music off, the console says that aim is unlocked, and viceversa.
You need to do a lot of polishing with this game.