Xenomorph would be more perfect opponent for Tails. Playing hide and seek, battle of the brains.

True, and Space Colony ARK would offer more room for Sonic to run around.
How many cartoon of Spider-Man have been released.
I have watched at least 4 of them, including the weird Spider-Man Unlimited (1999), but I feel like there are still a lot that I missed.
Spider-Man (1967 TV series)
The Amazing Spider-Man (1977 TV series)
Supaidāman (1978 TV series)
Spider-Woman (1979 TV series)
Spider-Man and His Amazing Friends
Spider-Man (1981 TV series)
Spider-Man (1994 TV series)
Spider-Man: Unlimited (1999 TV series)
Spider-Man: The New Animated Series
The Spectacular Spider-Man (2008 TV series)
Ultimate Spider-Man (2012 TV series)
Marvel's Spider-Man (2017 TV series)
Marvel's Spidey and His Amazing Friends
Your Friendly Neighbourhood Spider-Man
While it's good capturing the transition / evolution of old to new cartoon, Mickey Mania isn't made by SEGA.
Castle of Illusion and World of Illusion (plus QuackShot) really have that 16-Bit SEGA DNA that we can feel when playing it.
https://www.youtube.com/watch?v=oAAyP9KkQxQ
I don't play many Disney games, but I may give it a go.
Movie Super Shadow makes his debut in Sonic Forces today!

Source : https://x.com/SEGAHARDlight/status/1881316998820602123
You'd think they'd add those pink patches on his and forehead.
“Sonic the Hedgehog 4” Development Begins February 2025

Article : https://productionlist.com/sonic-the-hedgehog-4-announces-production-dates/
My guess the fourth movie will combine elements from Sonic CD and Sonic Heroes, while also having a Cameron-era Terminator vibe to it.
those Metal Sonic's were from the future, sent to present time to apprehend Sonic. But Amy (and likely Team Rose as well) followed them to stop them.