Sonic plots have pretty much always sucked aside from the old-school titles I guess (if they qualify as having plot haha). I mean not that the classic titles were some shining paragon of storytelling, but it was always simple enough - Eggman is building a giant Death Star knockoff go stop him. Sonic 3 and Knuckles gave you -just- enough of a hint of progression to make you want to keep going. When I was younger I used to enjoy the stories of Sonic Adventure 1 and 2 and subsequent games, even at a point in my teens when I was like "Sonic 06 is so COOL!" (the darkest period of my life). The thing is now that I've grown older I've formed the opinion that those stories absolutely suck (as well as the games themselves kinda but that's another topic altogether). The writing is poor and incredibly cliche, turning a game about a blue hedgehog who runs fast through a whimsical world into a soap opera. It really wasn't the greatest move - although to its credit Sonic Adventure 1 at least tried to be a mix of that and more real world sensibilities. However things post Sonic 06 haven't been the greatest either. I didn't mind some of the shallow dialogue and stuff from Sonic Colours at first - mostly because I felt it was a nice needed change of pace to have a simple plot and some different character personality traits getting the limelight. While some of it felt forced it was never truly overbearing until we get to the travesty of Lost World and it's completely unfunny, stupidly written plot with the blandest characters this series has seen in a long time. We all complain about getting one crappy new character in a new game but here we are with 6 of them and they all suck. I omit Generations from the list because c'mon let's be honest here it was a game built to be a glorified level select as a tribute to the series' history and I'm pretty sure we all knew that going into it. Sonic Boom seems to be continuing this trend of "horribly unfunny sonic" and I can't tell if I like that better or the melodramatic Sonic because I kinda don't care for both? As for whether or not the games need good plots - sure why not. Why not have decent writing. If you're gonna put it in there you might as well make sure it's good or what is the point? There is definitely a lot you can do with this franchise, none of it has to be deep or complex or on some sort of grand scale just for it to be good - merely it needs to be entertaining. But I am not sure if Sonic Team has the know-how to make this series have a good plot since it's never been one of the series' strong points. I hate to bring it up because I'm not really a huge Mario fan but look at how well those games have done in entertaining the player on a paper thin plot, and when they do inject it with some sort of crazy plot (Paper Mario games for example) they end up being funny and entertaining. Sonic just has this aura no matter the era of trying too hard, although I guess in a sense that's been a part of the character's DNA since day 1 since he was the cooler alternative to what was out there. The series has a real lack of identity outside of its old trademark visual style and nobody knows what the hell to do with it because of that it seems. The thing is they need to just stop trying so hard, stop trying to reinvent the wheel as far the series goes and just hire better writers. I will add though the only writing in the series I've enjoyed consistently is whenever Eggman is involved.