Disclaimer: this game has only got rid of major bug's/glitches so if you see any minor bugs in the game, THAT IS YOUR PROBLEM!!! Ok, thank you for listening to that. Known glitches, floating in air in boss fight (just dont do anything for a second and the character will fall down), moving when not pressing a or d, and some more other random stuff... Ok, so press a and d to move around, press e to use the knife when you get the weapons, and just click around to shoot your gun after getting it. Also, I am planning to make a secret in this game later on in future updates. If you figure out what the secret is, you will know why you can attack the sword of the boss and somehow damage him.
This game is going to be used for the engineering project.