I could only complete the demo and one level, the controls are hard to use and unforgiving if you make mistakes, and the camera angle and bloom make it pretty hard to see what's going on. There's also a lot of what I assume to be bugs: the UI buttons don't work except on the demo level where only two of them do, the level for 2 and 3 bring you to the same level, the black cubes do not have any selection indicators, the cubes regularly clip through the floors or each other. I feel like things would be clearer in 2D, and the levels don't really utilise the third dimension very much, so that might have been a better choice.
Viewing post in Until The End jam comments
I made a mistake with the UI because the only thing that can be used is the repeat button and return to the main page in the top right corner, the error doesn't differentiate between what can be clicked and what can't, while the others are just indicators and the black box is just an obstacle, You can just change the yellow box. I thought my bloom effect was just right, but it turns out it was still too much.
thank you for your input, it looks like it would be interesting and would be better if it were 2d.