- Fox, Falco, Marth, Sheik, Peach, Jigglypuff, Captain Falcon, Luigi, Ice Climbers, Yoshi, Samus, Doctor Mario, and, Ganondorf all identically restored to their melee movesets. This means Sheik and Zelda have to transform into each other, Yoshi can't jump out of shield, ICs being able to wobble, etc.
- All important movement and technical mechanics are 1 to 1 with melee:
Wavedash/land, dash dance, analog light shields (impossible to do with Ultimate's engine btw), same gravity, same aerial drift, same ledge mechanics, slow air dodge + instant helpless after, slower rolls than Ultimate, shield health depleting way faster than Ultimate, L-canceling, slide off mechanics, same hitstun/shield stun, no hitstun cancelling, etc.
- NERFED recoveries for brawl/sm4sh movesets. Only jigglypuff was the only character in melee whose recovery seemed ridiculous. Most brawl/sm4sh movesets had way too forgiving recoveries because of the ledge mechanics, gravity, aerial drift, and their actual recovery.
- Dreamland being restored to melee size, and the other stages having the same sized blastzones as their melee counterparts.