Hey there, this could turn out to be a longer post, as I try to nail down all the bugs and give some insight into mechanics and UI. I am using cheat engine, just to get the progress faster, so just a warning that I might be biased.
Also just wanted to say that this game is so good that it has drawn me out of lurking on these forums. Really splendid job. Something straight-up amazing in gameplay, sound and visuals. Guns feel like guns, pixel art is ja perfect mix of adorable and scary. And the sounds. I know those are from free source, but damn. The meaty pounding, her moans, the wet gurgles AND THAT LMG. Solid, rapid, bassy THUNK THUNK THUNK. Pure joy to pull the trigger on that one.
Mechanics & UI
1. Having a way to track totally-not-achievements during the game would be nice. It's just good to check out how many times more you need go get fucked to get that Dog Toy experiment.
2. Maybe it's just me, but the way numbers 3 and 8 are displayed in UI makes it difficult to differentiate between them.
3. I think it would be a great thing to not increase the health of the enemies on a by-level basis on casual difficulty.
4. Options to change resolution?
5. You seem like someone who cares about his little project, so I naturally expect a lot of changes and bugfixes. Problem is that it's hard to transfer saves from one version to the other. Maybe some kind of code you can generate? Or import/export option?
6. This is a game that feels like it should have perks for playing it longer than a few hours. And if one wants all the experiments done, they will spend quite a bit more than few hours. It could be anything. Faster reload, more money from enemies, 1 sec invulnearability after dashing, cheaper drugs, guns, the option for parts of clothing to be indestructible, or just trophies to decorate your little lab cell cozy room. Anything to give a visual and/or mechanical sense of progress.
Bugs
1.Might be general bug, but discovered it on Shack level, on treehouse, next to the gun vending machine. If you drop the weapon while your equipment interface is shown, the one with guns and drugs, and then buy the weapon from vending machine, the dropped weapon dissapears forever, but visuals bug out and you can see it in your hands unless you change the weapon.
Well, finished all experiments for Shack and no other bugs. On to the Cave!
Edit: Add the option for permanent bodies, with a fair warning that it will mess everything up! Just for the shits and giggles! And that awesome image of a litteral meaty carpet after twenty levels.