In Tourney Mode or The Subspace Emissary:
Highlight the Pokémon Trainer on the character-selection screen and tap in any direction in any direction.
In all other game modes:
Select the Pokémon Trainer, and his and all the Pokémon's portraits appear at the bottom of the screen. The Trainer's portrait will be glowing. Click on one of the Pokémon's portrait with , and it will start glowing instead of the Trainer's. Also, the Trainer's name will be replaced with the chosen Pokémon's.
If the Trainer himself is selected, the Pokémon you start with will be randomly decided.
Squirtle
Special Attacks
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Special Attack
Info
Water Gun
+
+
+
+
Withdraw
Nigh invincible during move; Opponent can jump on Squirtle to stop him similar to the Green Shell item
+
+
+
+
Waterfall
+
+
+
+
Pokémon Change to Ivysaur
Taunts
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Taunt
He does a backflip and says "Squirtle squirtle!"
+
( or )+
or
or
He spins around on his tail.
+
He withdraws into his shell and spins around.
Ivysaur
Special Attacks
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Special Attack
Info
Bullet Seed
+
+
+
+
Razor Leaf
+
+
+
+
Vine Whip
This is a Tether Recovery.
+
+
+
+
Pokémon Change to Charizard
Taunts
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Taunt
He shakes as his bulb spins.
+
( or )+
or
or
He stands on his forelegs and dances.
+
He raises his vines and spins, saying "Ivy, ivy!"
Charizard
Special Attacks
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Special Attack
Info
Flamethrower
+
+
+
+
Rock Smash
He picks up a boulder and shatters it with his head. The fragments are very powerful, but don't fly far.
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+
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Fly
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+
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+
Pokémon Change to Squirtle
Taunts
Wii Remote + Nunchuk
Wii Remote (sideways)
Wii Classic Controller
GameCube Controller
Taunt
He lifts his head and roars.
+
( or )+
or
or
He turns to the camera and growls.
+
He stomps his feet.
Final Smash
Triple Finish: When either Charizard, Ivysaur, or Squirtle take the Smash Ball, all three come out to fire heavy damage to the enemy. Charizard fires Fire Blast, Ivysaur fires Solarbeam, and Squirtle Hydro Pump. And, of course, it's Super Effective.