Nintendo wants to check your pulse.
The game maker on Tuesday debuted the Wii Vitality Sensor, a gadget that wraps around a player's index finger, AP reported.
No games were announced that would use the new gizmo, but Nintendo president Satoru Iwata suggested it could be used to "let people unwind or maybe even make it easier to fall asleep."
Iwata discussed the apparatus and showed an image of the sensor Tuesday at Nintendo's Electronic Entertainment Expo presentation at Club Nokia.
The game maker also announced the new Wii games "Super Mario Bros. Wii," a side-scroller featuring the mustached plumber and the ability to play with four players; "Wii Fit Plus," a follow-up to the popular fitness game with more workout personalization; and a sequel to "Super Mario Galaxy."
For the handheld Nintendo DS system, Nintendo unveiled "Women's Murder Club: Games of Passion," a mystery game based on the James Patterson franchise; "Style Savvy," a fashion title aimed at tweens; and role-playing games "Mario and Lugi: Bowser's Inside Story" and "Golden Sun DS."