Greg is a new character from that hails from Smashtasm. Like in Smashtasm, Greg is an antagonist in Super Smash Bros. Crossover. Greg, along with Girem6, is one of the main antagonists in the first half of Season 13. Greg plays as Falco in his green outfit, but unlike Smashtasm, he uses the Brawl version. Greg is also a hacker.
- Greg speaks primarily in leet.
- Greg, like the other characters that come from Smashtasm, is unaware that the main cast of Super Smash Bros. Crossover are the actual characters.
- Greg is crueler in this series, as he threatened to texture hack Pichu.