Twink is a Star Kid in Paper Mario, who helps Princess Peach in her time of need when she gets kidnapped by King Bowser. He frequently gives Mario and his partners information on where the next Star Spirit is being held, and where the team should go next.
When Peach was first captured, she wished for help, and Twink arrived. Since he's so young, he wasn't able to grant any big wishes; but he could assist Peach in eavesdropping around her castle. When Mario and his partners were fighting Bowser, Twink decided to take on Kammy Koopa. When Twink is fighting, he can only use 'Dash', while Peach increases his Attack Power with her wishes (expressed as 'Focus'). Once Kammy is defeated, Mario is given the upgraded version of the Star Beam, the Peach Beam. It summons the seven Star Spirits, who (with Twink's help) dispel Bowser's Star Rod's effects, making it possible for Mario to defeat the King Bowser.
At the end of the game, Twink bids farewell to the princess, telling her he's going to make people's wishes come true. It seems that Twink wants to tell the Princess something further, but he stops himself and rises up to Star Haven.
- Twink was going to be a partner for Mario, but was scrapped. However, there is a glitch where you can have Twink permanently. The only downside is that you can't play as Mario. You must play as Peach.