Krystal was considered as a potential playable character during development, but was passed over in favor of Wolf, both because of time constraints and because Wolf's movement and animations would be more similar to Fox's and would require less development.
As one of the many Star Fox characters who can be contacted via the Star Fox Smash Taunt on Lylat Cruise. Krystal appears in conversations triggered by all three potential characters: Fox, Falco, and Wolf.
Krystal reprises her role in the Star Fox Smash Taunt on the returning Lylat Cruise stage, and once again appears as a trophy in both versions.
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