Only one person but me has beaten it so far, so yeah it's a bit too tough. There are quite a few techniques I came up while playing, I'll probably update the description to include them, maybe update the game after the jam.
- Don't use a moon orb to increase your height unless you have fitting pieces for both the top and bottom side.
- Create safe nooks for the moon orb using other pieces.
- Rotate long pieces horizontal and place them before using a moon charge. This will create a platform that will create a strong foundation, can even set 2 items side by side.