Chopper Attack In Chopper Attack, you must fly down an underground cavern, destroying the bouncing red aliens before they destroy you. You have three lives to start with. Not only must you destroy the aliens, you must always refuel as the fuel dumps approach you. Failure to do so results in a rather nasty crash and the loss of one life. The fuel dumps are represented by a collection of '@' signs across the bottom of the cavern. The controls are: Q - Up Z - Down Space - Fire These controls are always shown on the screen, as is the score and number of choppers left. Before you start, you are asked for a skill level between 1 and 6, 6 being the hardest. To play the game, type in the listing as shown, and start using RUN. Store on tape using: SAVE "CHOPPER" LINE 1. Some important lines: 100-120 Determine skill level (variable 'sk'). 210 X,Y is the chopper's start position; XX,YY is the same for the alien. 230 a$, b$, c$ hold the cavern walls. 270 Initial number of lives. 540-548 Move the landscape right to left. 560 Controls how often you need to refuel, based on skill level. 600 on Controls chopper firing. 810 on Controls alien movement. 850 Controls alien fire, based on skill level and proximity to chopper. 1500 End of game sequence begins. -- transcribed by Matthew Westcott 2004-05-02 from "Giant Book of Spectrum Arcade Games", (c) 1984 Fontana Paperbacks