Fantastic submission. Really excellent work! Great lava shader too by the way. Found the whole thing to be a really chill and relaxing experience.
There was a level or two where I had some difficulty getting the robot to open his door.
Though I'm a bit embarassed to admit it, I initially (in the first level) got the robot to the other side, and it took me a full minute or two to realize that I'd already unlocked my door and I could move on. So I didn't realize what my objective was, nor that I'd completed it. I for some reason kept trying to get the robot to enter the adjacent room properly, and was spending all my time thinking the puzzle was figuring out what angle i needed to line myself up to the door with...if that makes sense. Having the door to the next room automatically open when it unlocks would have pointed me in the right direction more effectively.
Loved this entry, great work guys!