I didn't quite know what to do at first, but after jumping around and dying for a bit, I was able to get the die in the middle and make it to the next level! I might suggest adding the actual number on the die faces that you collect just to make them more reminiscent of dice, and perhaps adding some kind of particle effect to show the player that they need to collect it! But overall, I had fun jumping through the levels, and the art is simple and cute! Good work!