Beat

Beat is the personification of the good side of the Magic Hat, forced out of it after Ivlet steals the Magic Hat. Wanting to get the Magic Hat back from Ivlet, he accompanies the player and acts as a guide to them.
He appears to be a cartoonish fish shape, with his top hat and clothes all being part of his body.
Throughout the game, he guides the player through unfamiliar situations, often pulling up pages from the in-game hint system. If the player is currently not able to enter an area or interact with an object, he'll explain what they need to do. For example, if they're lacking the required clothing to enter Polar Fields and Inferno Cave, or they lack the item needed for Call, he'll explain what item they need to use. He'll also chime in on whatever quests the player is up to from time to time.
Beat also provides the Magic Encyclopedia, informing the player what items they can collect across the world, and where they can collect them.
At the end of the story, when the player reclaims the Magic Hat, he bids them farewell and rejoins the Magic Hat to restore its good side.