I liked a few things, like the little animation of the checkpoint/eye and the sound of the black hole.
The movement feels a bit nice but I didn’t like the last part because I feel the platform that goes in circles isn’t that clear when you see it the 1st time.
The jumps that go through different elements vertically need a bit of change, because sometimes you hit the ceiling before the change and you need to reset the screen to do the jump correctly since you get stuck or fall into the abyss.
I think the hitbox of the element bottles are too big, making a few parts a bit weird since you need to avoid them.
I liked the bgm, it feels good with the style of the visuals.
I don’t know if the game has a secret ending or if reaching the loop it’s the ending but it’s nice and short.