http://www.netrover.com/~timt/cheats/g/goldrunner.html (Amiga Plus Extra No. 5/97, 05/1997)During play press 'I' to skip to the bonus level and press 'U' on the bonus level to go to the next level. Hold 'F5' for a couple of seconds and you will become indestructable. Press 'F2', 'F5', 'F4', 'F3' one at a time for infinite everything.