Brutal indeed! Probably could use 1-2 even simpler introduction levels in the beginning, to familiarize with the controls. Any maybe even an "easy mode", where you respawn at your last position rather than restart the level. Even though that can become tricky with moving obstacles involved... Presentation is minimal, but spot on! Really like the sound and particle effect of the death animation and the gradient on the tail the ball is dragging behind it. Further plus: immediate restarts, both with "R" and "space".

Nice idea with a lot of potential on mobile , but the game is too hard for me.

Overall ,nice job :D

Very hard game but very original. Your UI was very crisp and responsive, the way you 'teach' the player is also very intuitive, the graphics are minimalist but again, crisp. Sound design was on point. The amount of content you managed to pump out is truly impressive for 48 hours. I like the subtle things you did like using space to restart even though you tell the player to use 'R'. Small things like that make a game a lot more enjoyable to play. Polished and well thought out, I can't fault it at all. Well done!  Edit: I think you might be on to a youtube gem :)

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If you have the time, please check out my game https://itch.io/jam/gmtk-2019/rate/461837
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One of the best game of this jam, but also somehow the worst one.

Very polished, great gameplay, and I love the death sound effect (well, I had to. It was playing pretty much constantly for me).

Well done!