Wa-Wa appeared in the "NATURE STAFF Mod!" video. She could make various ice structures when using the staff. She killed her old Master (Master Spike) after the Master had apparently betrayed her. Master Spike had only in reality asked for her family's taxes. This gave the Master's power to his other pupil, who became the new Master. She fought against the new Master Spike to the death. Master Spike defeated her, but then turned into Spencer inexplicably. Wa-Wa then also changed, turning into Gertrude.
- Her parents were killed in a rabbit-mice stampede.
- Her secondary name 'Gertrude' means 'Fart Goblin' in Greek.