Considering the roster size, I think organizing them horizontally is the most effective wayAlso, assuming the roster layout is similar to Brawl's, wouldn't the roster be organized vertically by franchise? All of the Smash rosters were organized in some way. Brawl had them by franchises vertically(Mario family, Zelda, Pokemon, NES favorites), and 64 had them by the order the franchises were introduced (with Mario and DK being first and Pikachu and Jigglypuff being last). Melee was a bit odd with clone characters being pushed to the side, and only a few unlockable characters were marked with ?, there were way more characters that were unlockable that weren't represented with a ? on the roster.