Mega Star

A Mega Star is a Starman-like object found in ? Blocks in the game Super Paper Mario. Upon collecting a Mega Star, the player's character is drawn into their 8-bit sprites from the original Super Mario Bros. game, in massive proportions. While the Mega Star is in effect, the player may smash through blocks, pipes, and enemies, similar to the Mega Mushroom in New Super Mario Bros.

Trivia

 * In Level 3-1, a Koopa Troopa grabs a Mega Star from a block and becomes a giant 8-bit Troopa called Mega Koopa. Mario or Peach (maybe even Bowser or Luigi if the player revisits this area later in the game) can find another Mega Star nearby and run into the Koopa to destroy it.