Face the corresponding Boss after defeating Seth, by completing the indicated task.

Boss	Task
Akuma	Do not lose any rounds and get a Perfect Victory.
Evil Ryu	Do not lose any rounds and get a Perfect Victory, then defeat Seth with a Super or Ultra combo.
Gouken	Do not lose any rounds, get a Perfect Victory, get ten First Attacks, and have five Super or Ultra combo finishes.
Oni	Do not lose any rounds, get a Perfect Victory, get ten First Attacks, have five Super or Ultra combo finishes, then defeat Seth with a Super or Ultra combo.

Note: Use the normal three round setting!