This was a lot of fun, and I really enjoyed brutality mode! Being able to also ride around on a toilet chair was top-notch. I love silly little things in games, so more of these would be excellent if you're ever looking to expand on that stuff. I also really appreciate that once you enter a code and unlock something, it stays unlocked--no need to enter a code(s) multiple times!
In the main menu, I'd swap the places of P1 and P2. Having P2 be the left-hand column is very confusing. I thought the controls were broken at first, and it turns out I looked at the wrong thing.
I know you explained each of them in my stream chat, but I'd also like to see a place where all the powerups are listed in game with what they are and what they do. Anything so the player has to guess less is good.
I can't wait for this to finally hit Steam, and allow online play. This will be a great silly party game, and honestly I think that's going to be where it shines the brightest. As a solo player game it's enjoyable, but not nearly as enjoyable as it will be beating up your friends.
My VOD with your game bookmarked for a timestamp is here: