Warplock, hands down, followed by Swordquest Fireworld, and Sssnake!. I actually did solve that POS Fireworld once I figured out the "Tree Of Life" pattern, but that was 3 years of my life wasted (I was a determined Atari nut). But Warplock, if I EVER hear that WHOOP WHOOP WHOOP WHOOP sound again, I'll take that dang cart and smash it into the nearest brick wall.