This is a tentative review, and that's because this seems to be more of a proof of concept, alpha or something along those lines. Personally, I'm in very high interests for this game. Reason? It's from the creator of Lilia's Livelihood and Rain's Rave, Mikotoshi-dou.
Tentacles is already my fetish. But having breast expansion and semen inflation make it even better, and if I know Mikotoshi-dou, bukkake as well. Hallmarks for such a great studio. And if you've played the two games I name dropped you'll love it as well. Not a fan of bugs and parasites though personally.
I would give it 5 stars, but there's barely anything at all at the moment. So 3 stars at the most basic and waiting for an update to this. Once the content drops, I'll edit the review as the game is built along. I can only hope it is amazing.
Edit: And so, the final game is here, and... well sadly it's keeping the same score I gave it when I first reviewed the demo of the game.
The game, while of course, keeping Mikotoshi-dou's hallmark fetishes of birthing, pregnancy, and breast expansion, is rigid, janky, and a bit of a chore to get through. The grind is quite real this time around too, as enemies drop piddling amounts of cash and xp to make for your upgrades, and take a few hits to down, but then again I was playing on Normal Difficulty.
The platforming is while not bad, it is mediocre and clunky. Animations are pretty janky, your basic attack is but a single swing downward and you're locked in place casting spells, spells which themselves are quite janky as well. You cannot move or cast spells while crouched or jumping. The sexual animations are nice however, I liked the Tentacle Bed and Semen Shooter animations, you can guess what those do to the MC. When you beat the game you, well, you don't beat the game. The game is endless for you to enjoy the animations, which the gallery is for. There are no credits.
In any case, the game I'm afraid doesn't live up to expectations, earning it 3 stars. It's not horrible, it's not great, just okay. You'll be fine if you want to or don't want to play it. Not missing out on much unless you're a fan of the dev like me. None of us should be surprised if we're being honest. Mikotoshidou went from RPGM to Platformer, and this is the first one they made. First times are always awkward.