Crossovers: The Red Guest 100% Walkthrough Gameplay + Secret Boss

Crossovers: The Red Guest is an April Fools 2025 spinoff made for the game Crossovers. I am here getting all the badges, completing the game, and also beating the secret boss.

Crossovers: The Red Guest OST:    • Crossovers: The Red Guest OST  

Crossovers: The Red Guest Description:
A spinoff for the game Crossovers for April Fools 2025. Note: The gameplay is completely different from the base game.

The guests are an extinct species that died a long time ago. However, one guest named Guest 495 was able to survive in a facility lab deep underground. He spent his days experimenting on subjects trying to find how life works, all for the hopes of reviving his friend, Guest 666.
But when trying to put a little bit of dihydrogen monoxide into his friend's tank, he accidentally poured a little too much. Because of this, Guest 666 became overenergized and developed psychopathic thoughts and abilities. He went around the City of Robloxia causing mass destruction using his enhanced dark dihydrogen monoxide powers. Fortunely, a warrior named Brickbattler came and sought to eliminate Guest 666 once and for all, but in order to do that, he must go through 3 other warriors that Guest 666 has possesed.

This game is inspired by Pizza Tower, very, very heavily. Good luck!

0:00 - Intro
0:55 - Bacon
3:41 - Builderman
9:01 - Roleplayer
13:09 - Guest 666
19:30 - Secret Boss