Ricky Ricotta''s Mighty Robot

Captain Underpants and the Wrath of the Wicked Wedgie Woman

Captain Underpants and the Attack of the Talking Toilets

The Adventures of Captain Underpants

Captain Underpants and the Perilous Plot of Professor Poopypants

Captain Underpants and the Invasion of the Incredibly Naughty Cafeteria Ladies From Outer Space (And the Subsequent Assault of the Equally Evil Lunchroom Zombie Nerds)