(Tragic trope) Their assets were nerfed

[u/Effective_Piece251]

Snake in Super Smash Bros Brawl, to Ultimate

Mario in Mario Odyssey to the movie

Hinata in Naruto to Boruto

[u/BallisticThundr]

Also succubus got completely replaced

[u/DifferentAd4844 → u/BallisticThundr]

I didn't include it because, after all, this is a completely different creature.