SUPER BOMBERMAN R

This can be done in offline multiplayer with one or two controllers. The same method works for the 'Won on 8 Player Multiplayer battle' Achievement - see my guide for that Achievement for more details.

From the main menu:
- Select Standard.
- Pick VS Battle.
- Select Multiplayer Battle.
- Set Player to 4 and Sets to 1.

Two controllers (the easiest method):
- Set Com Level to Off.
- Select any stage.
- Have the second controller join in.
- Select both characters and press to select None for players 3 and 4.
- During the match, lay a bomb with the second controller and allow it to kill the second player.
- After the match ends, the Achievement will pop!

One controller method (still easy):
- Set Com Level to Weak.
- Select any stage.
- Select your character.
- Set the second character to COM and select the character.
- For players 3 and 4, switch the COM option to None.
- Start the match and defeat the sole computer opponent. If you fail, select Battle Again and try again until you win.
- The Achievement will pop after your victory.

Set-up a 2 player multiplayer game with the following settings:

Rules: Battle Royale
Player: 4P
COM Level: Off
Sets: 1
Time: 9
Start Position: Fixed
Revenge Carts: On
Pressure Blocks: Off
Skulls: Off
Special Abilities: On

Pick 'Pitfall Zone' & any Bomber Types for controllers 1 and 2 then select 'None' for the other two player slots.

When the game starts press B on controller 2 to drop a bomb. Doing this will result in Player 2 killing themselves instantly, unlocking the achievement.

Following this method will also unlock:

Multiplayer with 2 controllers pick Battle Royale with 4p com off sets 1 and have the second controller kill it self this is the easiest way