http://www.netrover.com/~timt/cheats/d/dugger.html (Amiga Plus Extra No. 5/97, 05/1997)During play type "SCAMAGIC". The screen should flash to let you know it worked. This give you invincibility and allows you to use the following keys:
'F1'-Skips levels | 'F2'-Restart level | 'F3'-Extra lives