I feel like I'm the only person that didn't have a problem with the lengths of stages in LW3DS. I'm sometimes surprised to see just how long it took me to complete a stage. It might have something to do with how the level designs didn't feel repetitive. They felt long, but unlike Heroes and Shadow, I don't recall many bits of level design being reused to pad the game out (though, like those games, combat was used, but that could be bypassed or shortened a lot of the time) and it wasn't mandatory to replay any of them unless you're going for red rings or playing Hard Mode. On the subject of Classic Sonic's physics and level designs, I'm not very bothered since Mania exists and will probably get a sequel if Sega's smart. What I'm more concerned about is the future of Modern Sonic if what we've seen so far in Forces is an indicator of what the rest of his stages are going to be like. There's no consensus on what makes a good Sonic game and I don't see a repeat of Mania happening with any of the other play styles, least of all any of the 3D ones. Late edit: Addressed distracting grammatical errors.