Official Sega Dreamcast Magazine: Demo Disc 4 Cheats

Official Sega Dreamcast Magazine: Demo Disc 4 Be Invincible as Kurt in MDK 2 Demo
When Dr. Hawkins is telling you how to fire your weapon, move, etc. get tothe point where he says he placed a gernade somewhere around there. Thengo pick up the gernade but do not throw it. Go to sniper mode and hit theball in the doorway that keeps you from getting through it. This willcause Dr. Hawkins to stop talking and will take away the gernade from yourinventory but it will make Kurt invincible! Well worth it!