It's done, I took my time polishing the level.
Bullet Billding blocks: 0E28-0000-008E-E5E7
3 puzzles, ramping up in difficulty to prepare you for the 3rd one. Password shortcut included to skip the finished puzzles on retry. Each puzzle reveals the password needed for the next one on completion, so you can't miss it. Simply activate the indicated skull platforms to unlock the path to the next puzzle.
The first 2 puzzles have some bullets flying around, remember to wear a safety helmet! (provided inside). The last one has no danger apart from getting crushed :) Watch what you're doing.
You will run out of moves, the trick is to find the correct order since you only have a limited amount of 'lifts' available. The last puzzle has multiple solutions but if you're stuck there are some hints included in the level. The door with the question mark that makes the baby sound leads to a hint room. (Next to the pipe that leads to the next puzzle)
You can reset a puzzle as many times as you want, simply use the door (in the first one) or go in and out of the pipe in the other 2. (The hard part was getting the game not to reset the puzzle while you're playing it, the rooms can't be a single block wider than they are)
Enjoy!