Mario and Luigi will encounter a Shelltop NPC in Wakeport that will allow you to participate in mini-games revolving around the Bros. Attacks. By performing well enough in these mini-games, the player can receive prizes. There is a prize for getting 200 points (B Rank), 500 points (A Rank) and 800 points (S Rank).
| Attack | In-Game Description |
| 3D Green Shell | Kick the shell as many times as you can! Drop the boss for 20 points! |
| Fire Flower | A big flame is worth 3 points! Small flames will net you nothing! |
| Bye Bye Cannon | Jump on monsters to increase your score with each bounce! 1->2->3! |
| Dropchopper | Grab timers to increase the time. Then drop on monsters' heads! |
| Bomb Derby | Smack the bombs into the monsters! Watch for different kinds of bombs. |
| Slingsniper | Shoot monsters with the B Button! Try to hit multiple monsters at once. |
| Star Rocket | Tilt the Star Rocket to collect stars, but avoid damage balloons! |
