The Ultimate Bodyguard (護り抜くもの?) is the thirty first event match in Super Smash Bros. Brawl that takes place in Castle Siege. The player fights as Marth who is against two Ganondorfs. Marth is also partnered with Zelda. However, Zelda will not fight and just sits and stays stationary, though she will recover and move back on-stage if knocked off. However, if Marth doesn't KO both Ganondorfs when the stage reaches the third tier, Zelda transforms into Sheik who aids Marth in the battle.
- Interestingly enough, Sheik is more powerful here in this event. A simple tilt from her can KO Ganondorf at low percents.
- Despite the event taking place on Castle Siege, the picture for the event shows Marth and Ganondorf on Skyworld. However, this could have been a mistake.
- This is an advanced version of the Triforce Gathering event match from Super Smash Bros. Melee.