Delete lines 40-60 if you don't want the option. Each gives and infinite amount of whatever is in the REM statement.

This hack remains untested, since I do not have a tzx file of the original game cassette.

Click here to download this hack (TAP format) or Click here to download this hack (TZX format).

10 CLEAR 24999
20 LOAD "" SCREEN$
30 LOAD "" CODE : LOAD "" CODE
40 POKE 42117,0 : REM jet
50 POKE 43646,0 : REM rad
60 POKE 43339,0 : REM time
70 RANDOMIZE USR 32768