In 1981, Bill Hogue wrote
Robot Attack, a variation on the arcade game
Berzerk. Unlike most TRS-80 games, in
Robot Attack you can move and fire in all directions. You fire in a direction by moving the joystick in that direction and pressing the FIRE button. This shows up a problem with the STICK-80 mapping; how can a game determine if the player was moving the joystick up or down and firing if the
FIRE button is mapped to a combination of
UP plus
DOWN?
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In October 1981, Alpha Products created a new version of their joystick which included a mode switch to allow a choice between the STICK-80 and TRISSTICK
FIRE button behavior. The advertisements from then on referred to the joystick as the Alpha Joystick, and the price remained at $39.95.
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