On the options screen, type "BLADERUNNER". A screen will appear to let you know it worked and after 30 seconds the game will start. You will be invincible and can skip levels with the left and right cursor keys.
09--"RADAGAST" | 59-"SKYFIRE"
19----"YARMAK" | 75--"MIRGAL"
39-"ORCSLAYER"
09----"GHANIMA" | 59-------"JADAWIN"
19------"GLIEP" | 75-"GUMBACHACHMAL"
39-"MOURNBLADE"
Another password is apparently "STORMBLADE".