I am a bit of a Tetris gamer, so I do appreciate another spin on the idea. I will say outright that this has, so far, been the game that I most wanted to go back to and play. Clearing the hardest difficulty was more satisfying to me than one of many Tetris 99 victories. While the mechanics of this game are a little arcane, there is a bit of method to the madness that makes it functional, although still reliant on the will of the physics to ensure your victory.
I am immediately impressed by this game’s existence because of how easy it is to make a physics-based Tetris game completely nonfunctional. (See deliberately bad examples like “Hell Tetris”). The game is generous in clearing lines at the bottom with a bunch of squished blocks, though not so much when on top of a large stack of gel. From what I understand, each piece will try to “settle” to the rotation it was initially placed, though when multiple pieces try to settle, it leads to chaotic results that cannot be reasonably affected. In many cases, the best strategy is to wait out placing a piece as long as possible and hope that all the pieces settle properly.
The gel mechanic is the jankiest part of the game due to the reliance on going towards the corner vents. The problem is that square blocks, whether 2x2 or 1x1, will also try to “settle” even when there is no logical reason for them to. This means that a square block stuck in a vent will often vibrate and make it impossible to get gel into the vents without squishing it until it finally line clears. Depending on the positioning of the blocks, there are multiple game states where you cannot win, and luck is a large factor compared to normal Tetris.
I would ultimately say it’s an enjoyable experience for the three game modes it has, and I do enjoy the squishiness of it all, but I wouldn’t say it is especially erotic.