Toto World 3
Platform: Sega Master System
Region: Korea
Media: Cartridge
Controller: Master System Controller
Genre: Platformer 
Gametype: Unlicensed
Release Year: 1993
Developer: Open Corp.
Publisher: Daou Infosys Corp.
Players: 1
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Toto World 3, also known as Cave Dude is an unlicesed platform game developed by Open Corp. for the Sega Master System, released only in South Korea.

The game steals much of its graphics from other games, namely Super Mario Bros. 2 and Super Mario World. Some enemies resemble Tiki from The New Zealand Story.