Krystal has a couple of cameo appearances in Super Smash Bros. Brawl, as a trophy and on the comms with other Star Fox characters.

Krystal Trophy

Krystal has her own trophy in Super Smash Bros. Brawl, like a lot of other secondary Nintendo characters.

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Lylat Cruise Cameos

There's a secret set of cameos for other Star Fox characters in the Lylat Cruise level. They are activated by tapping the downward taunt button using a Star Fox character.

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