Unfortunately, I'd agree with the complaint at the top with regard to a handful of levels. Some of the silhouette levels in particular are full of invisible shit, and not just the secrets. The repulsors and unmarked fans in a few stages are also are minor examples of dodgy design. Now, I played on Steam, so aside from that, wall clipping bugs and lag especially on the troublesome yet fancy silhouette stages and in most of the Hospital made parts just infuriating. Inputting the same commands twice identically though muscle memory and getting two wildly different responses? Those cases are not fair difficulty. In some cases, I was able to beat all the Dark World stages (bar the one still locked of course) with A+ but not one of the light world stages AT ALL due to bugginess.
The website says the developers are trying their best to patch this though, but still, gah!
The End and The Cotton Alley stages at the end are however examples of fine and fair level design that don't rely on cheap gimmicks. Kinda wish there were more like them earlier in the game.
Also, being forced to watch the intro animations for worlds and warp zones in particular over and over again was something I didn't exactly want to put up with. Same goes for the couple of infinite lives non-saving checkpoint parts of the game, such as the characer unlocks and ending.
Despite all this, I did thoroughly enjoy the bits I could play and I'd recommend it with caution. I wonder if and how my opinion would change if playing on a console?
