Very elegant, and works very well. I love the minimalism. A lack of challenge maybe. You could add surface on the wall that you cannot touch, or gravity well that you need to avoid for example.
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Thanks for the feedback! I wanted the challenge to be against the leaderboard and yourself, to see how fast it could be done. But I do agree I could add more variety for sure. I didn't want to over scope and end up with a buggy mess, but I had so much fun working on this game I will probably keep developing it now. Thanks again, "elegant" is great to hear.