The character designs in Chrono Harem are like someone raided a hentai artist's sketchbook and just hit render. Big tits everywhere, I mean comically huge, the kind that have their own gravitational pull. The milf character, forget her name, has an ass that defies physics in those tight sci-fi pants. The ahegao faces during the animated scenes are top tier, tongues out, eyes rolling back, the whole deal. But the 3DCG models have this weird plastic sheen, like they're coated in baby oil. In some lighting they look like those weird sex dolls, which is either a bug or a feature depending on your kink.
The time travel gimmick is just a fancy menu to pick which girl you're banging. In the present you get this handjob scene under a table that's surprisingly hot, the animation is smooth, you can see every finger. Then you hop to the future and it's zero gravity oral sex which sounds cooler than it looks. The clipping is atrocious, her mouth doesn't quite line up with the dick half the time. Vaginal sex scenes have this weird rhythm, like a metronome is controlling the thrusting. No variation, just piston action. I spent way too long trying to angle the camera during a particular scene with the big tits fantasy elf, the one with the glowing tattoos, and the controls on mobile are a goddamn nightmare. Pinch to zoom works when it feels like it.
The writing is whatever, standard "chosen one" crap, but the voice acting during sex is genuinely good. Wet sounds, moaning, the works. There's this one scene where the milf character does this thing with her tongue that made me forget about the janky animations for a solid minute. The game crashed twice on my phone, once right during the climax of a scene. Not the good kind of climax. Still booted it back up though, so that says something.