Sonic Stages & Music in Smash 64 (Real N64 Capture video - ModDB

This is a very cool mod that puts in multiple Sonic Stages and Music into Smash 64. This mod is made by "ownsoldier".

55 Custom Smash 64 Stages (Real N64 Capture)

SEGASonic The Hedgehog In Smash 64 [Super Smash Bros. (64)] [Mods]

Sonic Stages & Music in Smash 64 (Real N64 Capture video - ModDB

Sonic Stages & Music in Smash 64 (Real N64 Capture video - ModDB

Smash Remix: the greatest Super Smash Bros hack - N64 Squid

Smash Remix: the greatest Super Smash Bros hack - N64 Squid

Steam Workshop::Smash Bros Mugen

Smash Remix: the greatest Super Smash Bros hack - N64 Squid

Sonic in SMASH BROS 64!!!

Sonic in Super Smash Bros. 64 by TennisHero on DeviantArt

Looking at different lists that rank greatest games of all time

Steam Workshop::Nintendo

SSB64 Level Creation Tutorial 01 (Sonic 2 Mod Intr video - ModDB