Game & Watch: Ball, also known as Toss-Up in the USA ("Time Out series" by MEGO), is the first in a long series of Nintendo electronic games. This game belong to the first series, also known as the "Silver Series". Originally Ball should have been called Acrobat, hence the serial name AC-01.
The small character in the game has to juggle two balls, moving his arms from right to left. Although slow at first, the pace progressively goes faster, challenging the player's reflexes and sense of rhythm. In game B, the player has to juggle three balls instead of two. Failing to catch one ball will have a "crush" appear on the screen, automatically ending the game.