The Promise to Toad
Episode number	Heroes Episode 5
Entry characters	Heroes
Plot	Upon learning that Bowser and Dr. Eggman wait in Big Ben, Sonic and Mario set off to confront them.
Location	Big Ben
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The Promise to Toad (also referred to asHeroes Episode 5 andHeroes 5) is the fifth Heroes episode in the Story Mode of theNintendo 3DS version ofMario & Sonic at the London 2012 Olympic Games. The episode is unlocked after completingTo the Ruins!, and unlocksThe Grand Showdown once it is completed. This episode's completion is required to unlock the Story Mode Cleared badge.

Plot[edit]

Sonic,Tails andOmega arrive outsideBig Ben, and Omega warns them that thePhantasmal Fog levels there are dangerous.Mario,Luigi andToad arrive, also noting the thickness of the fog. Omega says that his circuits may be damaged with prolonged exposure, and Toad also says that he is now struggling to breathe. A group ofimposters of Mario, Luigi, Sonic and Tails arrive, which Omega says are more powerful than the ones faced before, and the group challenge them to an OlympicEvent.

The group defeat the imposters, causing them to disappear once again and the fog to thin. Toad initially feels better and tries to carry on, but instead ends up collapsing from exhaustion. The group suggests that he heads back toMain Stadium for his own safety and agrees to do so after resting for a while first. Toad passes the walkie-talkie on to Tails, and Omega says that he will stay with Toad and return to the Main Stadium as well to prevent damage to his circuitry. The rest of the group head on to Big Ben.

Challenges[edit]

Names in other languages[edit]

• Mario & Sonic at the London 2012 Olympic Games Story Mode episodes

• Articles with unsourced foreign names