Very fun to play around with, reminded me a lot of Four-Sided Fantasy, you should check that out if you haven't already. Good level design too, although you could reduce the cooldown time between switching a little, i found myself waiting a lot just to jump again. But still very fun.
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I didn't know Four-Sided Fantasy, but after checking I completely understand why you got this feeling
Also the cooldown duration was a bit of a debate with my friend, I initially wanted it twice longer since you can stack swaps by killing enemies (initially a bug that turned out being a good hidden mechanic for the speedrun)
But thanks for your opinion, I take everything in consideration