[1] Blip was designed by Hikoo Usami for the Tomy Kogyo Co., the patent being filed in 1976 and awarded on December 19, 1977.
Blip is also capable of being played by a single person when the selector switch is set to position 1.
Upon the timer dial being turned, a spring is wound which then, via several gears, drives the arm upon which the LED light (the ball) is mounted.
The movement repeats after the ball hits each player's side 36 times, so it is possible to memorise the sequence of buttons to press.
[4] The LED (and series resistor) is the only electrical component of the game, and is powered by two AA batteries.
[5] As a result, with sufficient ambient light the game is playable without batteries as one can see the unlit LED under the screen.