Out of all the unds i've beaten, this is probably objectively the best one. The progression of decoration is actually really cool and stuff, Unfortunately i beat this before I realized it was actually way harder than the average 7 star, and that combined with the level being so easy up until the last robot came to make this a super annoying experience. Still, I think this level is super good, I replay it sometimes whenever I get bored and that is pretty high praise