I couldn't get this to run. I opened task manager and the process was always running in the background, but no window would pop up.
Viewing post in Around the Cube jam comments
I figured out how to run it. It was Windows Defender being overzealous. I thought this was a good start to a platformer, but in the second level some of the jumps were a little too unforgiving for my taste. I thought the troll of the spike traps changing platforms was pretty funny, but I couldn't get much further than that because the jump input wouldn't register sometimes. I also noticed the coin counter didn't go up as you collect coins.