Play as Sephiroth in âSuper Smash Bros. Ultimateâ today by defeating him Otherwise, you'll have to wait until next week During a recent presentation, Super Smash Bros. Ultimate director Masahiro Sakurai announced that the fan favourite character will be available in the game next Tuesday, December 22. However, players can get early access to the character by completing the Sephiroth Challenge. The limited-time challenge is available to users have pre-ordered the Sephiroth DLC â either individually or as part of Fighters Pass Vol. 2 â and pits them against a Boss version of the FFVII villain. After Sephiroth is defeated, he will be unlocked and available to play immediately.