Really jank and simple, but it's okay. Click 100 slime-things as they zip upwards across the screen, you're allowed to miss up to... 20, IIRC. My first try, I got all 100.

 "Horror" isn't the right word here, I guess you could consider the art a little gross, but that's about it, it's got that whole "skin stretching to reveal eggs inside" vibe, but then again the game's also got that nasty issue a lot of lewd games have where you're focused on one side of the screen while the lewd bits happen on the other side, and looking over means death. Thankfully the game's so piss-easy that it doesn't matter. If the game was harder, I'd rate it lower.