I enjoyed the playtest. Thank you very much. I found a bug and would like to report it. I think it can happen in any stage if there is a box that can be moved. 1. Press the box while pressing the "Run" button. 2. jump in the opposite direction. Double jump. If the character's direction does not change when jumping, you have succeeded. This may have been possible because I played with a gamepad. It is an interesting phenomenon, though, so I am fine with leaving it as it is....

Just a heads up for anyone planning to play the full game, don't delete your save folder.