The 2d style makes it a bit confusing, and the indicators show what face the input will result in instead of which face is on that side so I had trouble visualizing the die. I like the graphics themselves, and the colors used look nice. Gameplay was pretty good overall but hindered a bit by visuals, time taking to move feels a bit too slow, and not having a way to undo can be a bit frustrating (but understandable to not implement this in a game jam, it takes a lot of dev time with special mechanics).
I think the levels themselves were also good overall, having a good balance of difficulty.
Viewing post in Cosmic Cubes jam comments
It was a lonng discussion between us whether to have the number oriented on the same face, or based on the input during the jam. Maybe adding a "flip indicators" option would help?
Also, the time to move I wish I could've implemented a tweak able delay, but when I made the animation they were pretty tuned to the delay that we set, and I didn't have time to change the functionality of that. That was a thought of mine too though.
The thought to undo a move didn't even come across our minds, that would've been a great addition.
I'm glad you liked the levels though and they weren't too hard.
Thanks for playing!