Eternal Star

The Eternal Star is a rumored collectible in Super Mario 64 similar to the Ghoul Medal and The Book On Bad. It is believed to exist from the engraving on the Castle Courtyard statue's plaque, which some have interpreted as "Eternal Star". Some people propose that the Eternal Star is the large star seen in the ending after defeating Bowser in Bowser in the Sky.

Some people propose that the Eternal Star is the supposed 121st Star, or a method to unlock Luigi, the latter likely being due to the other common interpretation of the plaque being "L is Real 2401".

The Eternal Star can supposedly be found in Super Mario 64, often found after the game is completed. It is usually reported to appear in place of the star seen on the Castle Courtyard statue, often after all 120 stars are collected. However, this is inconsistent, as well as what it unlocks.