Haha, forgive me. I was being lazy and didn't read the controls over...the keys are placed well, so don't worry.
Well, I had another good run! Got the weapons, beat the first boss, etc. Good variety of weapons, and the boss battle was intense - your spawn rate of slimes in the boss room is spot on.
I died at the second boss, but I'm not complaining - I just forgot to grab health packs before going into the boss room.
Well, my final verdict is - keep doing what you're doing! This is impressive for a first game.