Thanks a lot for reviewing my game! I hope I'll find the time to finish (and polish a bit) this game.
Until then, a little hint:
There are no keys anywhere in the game, but many objects are breakable :)
And remember: short control bursts!
P.S.: On some levels, you can pick both pulse rifle and grenade launcher (more like moded shotgun) but as the separate weapons. You have to change weapons either with mouse wheel or the 1/2/3... button
Good luck with Your channel!