Possible Clues:

• Music game with a floor pad, for short
• E. Germany, to natives
• Musical arcade game, for short
• East Germany, to natives: Abbr.
• What East Germans had on their vests
• What East German athletes had on their vests before the Wall came down
• Music game with a floorpad, for short
• Video game with arrows and a floor pad, for short
• Popular arcade game played with the feet: Abbr.
• Rhythm-based game from Japan, for short