Subterranea © 1983 Imagic.
* Fight off attacking Aerobots and swoop down to seize the Treasure Crystal.
* Descend to the tunnels, blasting the flying foes. Don't let the Ranger touch tunnel sides... especially any skulls!
* Clear a tunnel and find the Electro-Gate. Move the Ranger through it safely in 3 attempts or less.
* When you've cleared the bottom tunnel, descend through the glowing transit port and enter a big cavern. Keep going if you can!Game's ROM.