Not sure if this is a bug or not, but the H blocks just make the robot bonk it's head and fall early instead of sticking to the ceiling for the full jump duration. Weird thing is, the robot does stick to the ceiling in a level called frozen inferno (it's within the first like 10% so you don't have to go looking very far), there's a couple other levels that do have the robot stick to the ceiling too, another being one space (it's at like 50% in that level).
Could someone help me, I want my whole part to revole around this mechanic and for some reason it just doesn't work