While i do agree that Sonic Team doesn't seem to care anymore during this decade, i do think stuff like the early 3D games were still pretty good, the only bad gimmick in any adventure game were the fishing stages in SA1 and the Mech Shooting in SA2 and even those were done right the previous game, but everything such as the treasure hunting wich feels like a fun arcadish collect-a-thon experience, or the slow platforming with Amy wich feels more Mario-ish or the shooting stages wich have a fast paced arcadey feel to it, all of wich fit into the core Sonic gameplay style perfectly, even when the treasure hunting stages were slightly ruined in SA2 due to the shitty radar, they still were somewhat fun although a lot more frustrating than in SA1. but not any less fun than those motion control stages from Galaxy 1, and can you blame Sonic for wanting to ripoff mario when a lot of it's fans and haters straight up say Sonic should be more like Mario? same goes for the Werehog, a lot of the hate is exagerated if your good enough the stages might atleast last 10 minutes, wich is a lot but not as much as people want to make it out to be, if you forget this is a Sonic game, it's a solid enough hack and slash with some depth RPG mechanics and good puzzles. like i said it's not God of War, DMC or Bayonetta levels of good but it's still a fun enjoyable experience. Parkour also coud've been a good addition to the core Sonic gameplay, giving Sonic more flexibility, wich if Super Mario 64 told us something is that a lot of moves that are easy to learn but hard to master always make controls satysfyng. all three styles were used a lot in said games, beating the Treasure Hunting Stages was mandatory in both SA1 & 2 to get to the final boss and true ending, the Werehog took up a lot of the experience (id say too much but it's still not bad enough to make Unleashed a bad game), and the parkour was used a lot in Lost World for level challenges.
i also like the stories in the games, there atleast used to be genuinly interesting lore, character development, from a writting perspective the game sometimes did some pretty great shit, it wasn't until sonic haters started hating them because sonic should be lighthearted because it's cartoony even though there's a lot of cartoony series, including Nintendo's that also get really dark and do it spectacularily, i like to compare Sonic to Paper Mario, both series started excelent storywise, it seems Int-Systems and Sonic Team cared to make it as well written and consistant as possible, sure there were plotholes here and there but it was good enough that you could give them a pass, there was still some suspension of disbelief in both series, until eventually an external force such as haters or the creator of the series getting it's message misunderstoof started turning the series into a bland kiddy mess, plots didn't make sense anymore if there were any, nothing barely went on, the tones changed from that akin cool adventure book or a shonen anime respectively to a bland attempt to pander at casuals and ended recieving hate from both fandoms, although a lot of fans also started defending the bland approach, say whatever you want but Sonic's friends have way more personality and development than the
Same 5 Toads