I guess most mods really are an improvement. Just like Parallel World or the PT moveset where Wario becomes op asf.
I was meaning more for story and characters. I just found Ribbit much more enjoyable than the OG Chapter 1 of Deltarune because...
If we're talking about improvement mods: literally almost every Sonic game lol. And SM64, nice to be able the best 3D platformer of all all time without having bunking into walls.
If not, then I'll be talking about then Newer Super Mario Bros...
I tried to recreate Mega Man 6's Weapon Get pose. It's not perfect but I'm cool enough with the result. Still need to figure things out for the lineart.