Crystal Mines (Nintendo NES)

You will be wonderfully surprised once you take over the controls for this hi-tech robot. Endless levels of cleverly designed worlds stimulate even the most demanding players! Your object is to mine the valuable "Starla" crystals by learning to use the ingenious devices in the mines. You can blast your enemies with energy balls and explosions or crush them by setting off avalanches. But watch out for unexplained chain explosions, for they can easily blow your robot to bits! After meeting the quota of crystals, another whole new world awaits your challenge. Only by discovering new strategies and adapting to the ever-shifting mines can the player overcome this dynamic puzzle.