My reason for loving Mania!SSZ is simple: it's pretty much pure Sonic distilled down into a single level. It's a chaotic morass of routes, not do much a cleanly split collection of two or three linear routes, it's a complete fucking mess where you fly between all sorts of short pathways interconnected into a maze--yet it works. You never feel lost or like the level's fighting you like in CD. It's a insane surreal pinball table. It's the kind of level that could ONLY exist in a Sonic game.