Verum Rex (Toy Box)

Not to be confused with Verum Rex, the real-world project developed by Tetsuya Nomura.

Verum Rex appears as a fictional video game within the world of Toy Box, a world in Kingdom Hearts III based off of Pixar's Toy Story franchise. It is a popular Action RPG developed by the in-universe version of Square Enix. Yozora, Magia, and Aegis, appear as the main characters of the game, and the only known boss is Bahamut.

Verum Rex: Beat of Lead
Its spin-off, Verum Rex: Beat of Lead, is a playable arcade-style shooter where you control a Gigas Mech to destroy a variety of other Gigas in order to get the best high-score you can. Sora serves as the only playable character in this game.