The scenes in this are really good, and the gameplay is surprisingly good for how simple it seems, having to prioritize certain girls over others depending on move speed and how close they are to escape. I wish there was a bit more interactivity, as it can sometimes feel like it's impossible to win from certain game states, so some sort of "active ability" would be interesting to see. Maybe something like "once per level, ensnare all girl's feet in tentacles and stop them from moving for X seconds.".
I notice that some girls have different behaviors than others, but it's hard to pinpoint what exactly. An in-game guide or something that unlocks specific details about each girl's behavior once you capture her enough times would be a very good feature.
Personally, I feel like there's a bit of a disconnect between the capturing of the girls and the actual tentacle-fuck animations, unlike some other similar games like Tentacle Locker, Tentacle Van and Tentacle Beach Party (damn, all these games have really similar names.). In those games, the animations would play in the levels when you capture a girl, but in this they're only visible in the gallery. I think it would be an improvement if they were more tied to the in-game capturing, for example if the animations would play in game when you captured that specific girl once you unlocked one (maybe in a window up in the top corner or something, like how Tentacle Van handles it), or maybe if you had to capture specifically the girl in the animation to get points towards unlocking her specific animations.