DARK CAVERN
• 2 versions exist. The NTSC version (picture #1) has the counters within the playfield boundary; the PAL version (released as Night Stalker, picture #2) has them outside the boundary.
• Although it’s not specified in the manual, either joystick (left or right) can be used to play. {Tony Roy}
• Once you’re at the point where you have 4, 2-headed robots, the time it takes for robots to revert back to the lowest-point color will start to decrease, to the point where it will be impossible to shoot all 4 fast enough to earn a free life. However, at 400k and approximately every 200k thereafter, this time variable will get reset.
• BUG: The instructions state that the two-headed robot will appear when the score reaches 20,000 points. This actually happens after 16 robots are destroyed, regardless of the score. {BSR}
