Successfully complete the indicated task to unlock the corresponding character set:

CPU Mode set: (10 characters): Defeat a CPU character.

Skin Edit Mode set (2 characters): Successfully complete Skin Edit-single lap with an "S" rank.

Time Attack set 1 (three characters): Successfully complete Time Attack 60s with an "S+" rank.

Time Attack set 2 (three characters): Successfully complete Time Attack 180s with an "S+" rank.

Time Attack set 3 (three characters): Successfully complete Time Attack 300s with an "S+" rank.

Time Attack set 4 (3 characters): Successfully complete Time Attack 600s with an "S+" rank.