Set-up a 3+ player multiplayer game with the following settings:
Rules: Battle Royale
Player: 4P
COM Level: Weak
Sets: 1
Time: 9
Start Position: Fixed
Revenge Carts: On
Pressure Blocks: Off
Skulls: Off
Special Abilities: On
Pick any Level & Bomber Types making sure to select 2 COM players and 'None' for the fourth player. When the game starts make your way to one of your opponents and eliminate them with a bomb (doesn't have to be your own bomb). They will now be in a cart circling the arena, throwing bombs at everyone remaining. Just get hit by one of these bombs to unlock the achievement.