It’s a cute, small game, but I agree with the other comments that it’s quite difficult to play—or maybe I just lack some serious platformer skills, which is also a possibility, hahaha.
I like the concept of the game, and after a few attempts, the first level becomes quite achievable. However, I couldn't finish the second level due to a lack of time.
Another difficulty I encountered is that the highest platform is always very hard to reach because of the collision with the ceiling.
In the first level, which has peaceful, clear weather, the shells aren’t very visible. In contrast, the second level is darker, which improves visibility.