I think Level 5 was largely my favorite run of levels, mostly because it took pretty cool use of bookshelves hiding crawling hands coming at you, and the bottomless pits in the containment tubes were easier to avoid and enemies typically didn't spawn to push you in them. The sewers and lab get a difficulty spike, but it's still a test of patience overall.

The portal level sucked. The amount of health just isn't enough for what is memorization of patterns with some otherwise unreactable segments in the chaos.

The seventh string of levels was also fine! The void's aesthetic is cool, and I like how the eventual escape is basically running away from Brawl's Tabuu with some glowing orbs. The difficulty of the second part, removing the girl from the crystal, is pretty punishing, though.

The final section of levels is where it really gets grating in terms of options and movement, though. The patterns of the elevator drop are fine, but the final boss is heavy reaction time + patterns with a high difficulty curve. It's not impossible and the difficulty is a challenge, but it really pushes how little your movement and combat options are, where the last section of the final boss requires nearly perfect execution with movement I already wasn't a fan of.