This was a really nice game! I really enjoyed the way the cube moves and the sounds that accompany it though the alert sound for when you're in the walls for too long is too loud.
The inclusion of characters you can interact with was unexpected in a puzzle game but a welcome surprise for sure though I almost missed it for thinking it was just part of the environment (as maybe a thing to reinforce the malfunction theme?)
The puzzles were well thought out. They were a bit challenging but never frustrating and I especially like how it also requires a bit of skill in the movement, it's enough to want to play again while trying to get through it as fast as possible.
The enemies were placed in such a way as to make a specific kind of obstacle each time which made each section feel different from the others and really made you feel like you went on a little journey.
Also liked how you can revisit each level in an instant and how the world is all connected. Would definitely love to see a longer version where this is used to the full extent to tell a story.
The credits were also quite charming and unique.
I did find a few bugs though. If you fall on lava but keep moving it seems the cube will be misaligned upon respawning which isn't a big deal but it makes it lose the satisfying quality of the cube movement.
If you press r repeatedly while moving it seems the cube gains a bit of momentum but more importantly starts shrinking and will eventually disappear. The increased momentum didn't seem to do much after an initial boost and you still die upon touching lava but maybe with more tinkering there could be a way to skip levels..
Regardless, a fantastic game through and through. Congratulations!