Rock Vibe 2.0:

New & improved belt: Better vibration localization – easier to tell which motor is vibrating
Compatible with more instruments: Play using the computer’s keyboard, MIDI controller, or compatible Rock Band® instrument
Better audio: Improved mixer and new sound effects provide clearer music and more enjoyable gameplay
More songs: Because you can never have enough music

Hardware for versions 1.0 and 2.0:
Adjustable, USB-powered belt containing 4 vibrating motors
Compatible with computer keyboard

Software for versions 1.0 and 2.0:
1-player mode
2-player mode
Training level
Compatible with WAV, AIFF  music
Levels coded in MIDI
Narrated menus + simple, large-text interface
Ability to add your own levels, sound effects, and narration