Dreamcast Mouse
From Sega Retro
The Dreamcast Mouse is a mouse controller for the Sega Dreamcast similar to the Shuttle Mouse for Sega Saturn and Mega Mouse for the Sega Mega Drive. The peripheral is meant for use with the Dreamcast's online web browsing capabilities, but can also be used in conjunction with the Dreamcast Keyboard for playing games traditionally on PC, such as Quake III Arena and Unreal Tournament.
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