Rex

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==='' " * If you do a No Mercy Route in the demo, every page from the Instruction Booklet (minus the first and last page) will be replaced with the Undertale Logo above a message written in rex text." '' ===

General Information
Rex is an entity that not much people has known of. Recently discovered on February 19th, 2021. He bares a striking resemblance to Hit Indie game UNDERTALE's "Flowey" character. Apparently, twitter user "Semi Frequent Undertale facts" have made a post saying that rex text is written in the manual when doing a No Mercy Route, hinting on Rex's existence. This is further supported when Twitter user Meyling confirmed the existence of rex.

Trivia

 * He is theorized to be Flowey's long lost cousin from New Jersey