Since you use Super SC-03 from the get-go, you don't have to choose. Press SPACE to skip the dialogue. Left Right Arrows - Move Up Arrow - Jump Z = Sword Lunge X = Jump Shot C = Parry when projectiles are close to Scratch F = Melee Slam Space= Shoot Down while in air - Quickfall TIPS: Be as aggressive as you can be. Parry his melee combo and his consecutive claps ( not the Thunderclap ). Also use the Sword Dash into him and the Melee Slam. He's basically my SF3 Ouranos and one of my hardest fights.
Music is from The Legend of Zelda. Some melodies come from Homestuck. Mentions to @anexus , @WolfenWitch10 and @Kaboom-Dodgylery .