This is an example of excellent tutorialization!
Loved the little robot, and the game is really polished overall.
However, I couldn't get past the green cube, it seems that the movement didn't work how it should: I pushed it, moved away once but it didn't retract, only on my second movement, which made it impossible to solve that puzzle :(. Let me know if this is not clear!
Otherwise congratulations and really cool concept!