Bad User Brawl is the Multiman Smash of All Star Smashers. It involves executing as many bad users as possible. This Mode takes place in Battlefield.
- 10 Bad User Brawl- Beat 10 Bad Users as quickly as possible.
- 100 Bad User Brawl- Beat 100 Bad Users as quickly as possible.
- Timed Bad User Brawl (Time can be selected up to 99 minutes maximum.)
- Bad User Brawl (Endless Smash)
- Big Bad User Battle (The toughest users around.)