Rollerball (ローラーボール, Rōrābōru) is a video game produced by HAL Laboratory in 1984 for the MSX.

The lowest (final) screen shows only a blue backdrop, representing the Ocean.

To the top is a small loop marked SLOT; if the player sends the ball through this loop, a slot machine display in the center of the screen cycles, with various penalties or rewards given when one of the three symbols (an eggplant, a pair of cherries, or a bell) appears three times.

The center of the SLOT loop is open, allowing the player to enter the bonus screen.

The lower one will shoot the ball straight up, relying on the curvature of the wall to direct it into the upper hole if the player is lucky.

If the player gets three cherries on the main screen slot, this hole will always shoot the ball upwards.

Completing a set of drop targets increases this bonus tally; sending the ball through a slot when its light is lit (one can move the light by flipping the flippers) adds the current tally to the player's score.

After this is done and the ball is placed in the kickback hole at the top of the screen, the letters turn into bumpers which must be hit numerous times to remove and start the bonus game again.

In this mode, a much smaller table, only one screen tall, houses a number of buttons and switches that lower the score of the player on that side by various amounts.

In the English version, the giraffe was changed to a donkey, likely in reference to the Republican and Democratic U.S. political parties.