I like this game, but it is also in dire need of some balancing issues.
At present, it is almost impossibly tough without cheating, even in the Shack level. The only way I was able to get beyond 13 waves was by escaping being grabbed in the pause menu. And once I got the two biggest machine guns, I was able to pretty much cruise all the way up to wave 50, and by then I just let the MC get caught so I could play a different level.
Turning on the lights in the Cave is WWAAYY too expensive. By the time you've saved enough to turn them on, you have no money left to spend on guns and drugs that you need more, so you're totally damned if you do, and damned if you don't.
At present, I don't know how anyone is supposed to accomplish anything on the Jungle level. The goblins soak up way too much damage, are far too numerous, lay down way too many traps, and provide you with very little money. I would strongly suggest limiting the range the blow-darts can go and limiting the number of traps that can be put out, and have them de-spawn out after a period of time, like how ammo boxes will de-spawn.
If we cannot keep our money and guns earned (which does make sense), we should at least gain something else that allows repeat play throughs to be a little bit easier, so we can achieve those higher waves fairly and without cheating. Starting every level from square one doesn't feel like progress, you're banking every play through on 10% skill and 90% luck.
I recommend making each unlocked outfit piece provide a small buff of some kind. +5% damage, +5% libido resistance, etc. The accumulation of these buffs should also be taken into account by making the harder levels slightly more challenging to maintain a balanced experience the whole time.
Basic quality of life issues:
The pause menu should have an "options/settings" button.
Be able to exit a level without having to mind break or return to the main menu.
Replay Gallery, so you can see all the ways the monsters play with the MC: because it's bad design to force players to lose to get the rewards.
Bugs:
The game breaks on me when the MC gives birth. The MC's animations and edge-grab all shut off, but you gain infinite jump. And the monsters stop pursuing the MC.