While considering more games from back in the day, I don't think it's fair to say that Sonic CD is the worst classic 2D. Sonic game period. One of the lesser-consistent-level-design-quality classic 2D. Sonic games? Sure, I can get behind that. The worst classic 2D. Sonic game in general though? In my opinion, hell no. Certain 8-bit classic 2D. Sonic games have some Zones which contain what must be the most obnoxious, frustrating, disorienting and boredom-fuelling pipe/tube maze-like level design I've ever seen in the entire series. Fuck all that nonsense, has absolutely zero place in a Sonic game. In fact, I'd likely find it very unfitting and very poor design in almost any game, Sonic or otherwise. It's just un-fun design, which is a big shame when you consider that some of those same games also have decent to good to even-great Zones in them, some with banger music tracks too. I'm saying all of the above in general, by the way. Not targeted at anyone specifically, just wanted to bring the 8-bit games into the equation a little bit; I think it's worth bearing in mind the larger catalogue of classic 2D. Sonic games, particularly when making rankings, comparisons and the like. All of that said, worse level design being out there in the Sonic series shouldn't discredit criticism of Sonic CD's various level design quality inconsistencies, even if they're not as bad.