"The world's smallest graphic color display with revolutionary computer game functions! You can see the boxer's arms move to throw punches, legs move to duck and body falls to take a 10-count. Over 100 million computerized plays - a constantly challenging game." - from box cover

This handheld game takes both batteries or AC adapter and appears to have been available in multiple different packaging. There were also white versions produced. The screen is a vacuum fluorescent display (VFD).