Expedition

EXPEDITION


by David Link


from ZX Computing Feb/Mar.1984





TUNNEL RUN





Scramble through the space maze in this


program from David Link of Liverpool.








Loosely based on one of the more popular arcade games,


Tunnel Run has you exploring a space maze in your star ship.


There are four stages to the game, in which you must pass


through the missile tunnel, the asteroid field, the winding


tunnel and finally, you have to land your craft on the


landing pad.





The program works mainly through the fact that POKEing a


number between one and 255 into SCRCT at 23692 will make the


screen scroll without asking the dreaded question "scroll?".








The Terror of the Tunnel





The movement keys used throughout the program are the '5'


key to move left and the '8' key to move to the right. In


the second stage of the game, you use the '0' key to blast


at the blue spacecraft that try to hinder you. But be


warned, each time you fire at the ships you will lose 20


points; however, if you manage a hit then you gain 100


points.





In the final stage of the game, you have to land your ship


on the landing pad. To control your ship you must use the


'R' key to manoeuvre.





If, at the end of the game, you accidentally break out of


the program, re-start with GO TO 45. If you RUN the program,


you will receive an "Out of Data" message and you will


destroy the "high score" facility.








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Another Fine Product transcribed by:


Jim Grimwood (jimg@globalnet.co.uk), Weardale, England


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