WHY THE HELL NOT!
The last Sonic game I played was Sonic Adventure Battle 2 and it was a freaking blast. With great music and fun stages with hidden content my game play hours were high as hell. The reason why I played the game most was because of the mini game CHAOS WORLD. These little shits were so adorable it'd make your eyes bleed. They were like tamogachis but a leagues better. I funneled so much time into maxing out my chao's stats I turned into a stage farming zombie. You can either abuse the crap out of them like an American foster home or love and nurture them. They return of the chaos are very controversial due to the fact that the mini-game is completely useless in the main game. I wouldn't care how bad the game was (I'm looking at you sonic '06) I would play the entire crappy game just for the chaos. It's like being a parent you do crap you don't want for your kid. Tedious as it might why not have one of the greatest aspects of the Sonic franchise in almost all of your games.