The Mega Star is an item in Super Paper Mario.
Upon being touched, the Mega Star turns Mario and his allies into a giant, 8-bit version of the character. The sprites used are updated versions of the original Super Mario Bros. sprites. While affected by the Mega Star, Mario can run into enemies and certain obstacles without worry – even Warp Pipes are destroyed by merely touching them. The rampage of the character ends after a few seconds, however. Only few Mega Stars are found in the game, and ones that are found in special areas designed for use of the Mega Star in order to get a high amount of experience points and lives.