That was confusing
Just finished both parts. Very cool and unique concept.
The 3D and 4D levels, i think were the same, but they had 3D graphics, so idk if i was supposed to play them differently, but they worked the same.
The only complaint i had was that i didn't really need the 'Q' and 'E' keys, almost every level was solveable with just 'Z' and 'X'.
Levels very hard and well thought. Good job really!