Baraduke

Baraduke, also known as Alien Sector, is a scrolling shooter arcade game that was released by Namco in 1985. It runs on Namco Pac-Land hardware but with a video system like that used in Metro-Cross and Dragon Buster.

The player must take control of a spaceman in a bio-suit, player 1 is Kissy and player 2 is Takky. They must clear eight worlds of increasing difficulty (each one consisting of five regular floors and one boss floor) by using their wave guns to destroy the enemies populating them. They must also save the one-eyed Paccets for extra points and a chance to earn another shield in the end-of-floor bonus game. On each floor there are a certain amount of enemies named Octy, which will leave power-up capsules behind when defeated. Defeating all of the Octy on the current floor will open up a pipe at the bottom of the floor - find and enter it in order to proceed to the next. The boss floors feature a giant enemy (a Blue Worm in worlds 1, 3, 5 and 7, a Turning Eye in worlds 2, 4 and 6 and the Octy King himself in world 8) which must be destroyed in order to proceed to the next world.

A sequel named Bakutotsu Kijuutei was released in 1988, but only in Japan. It introduced several new enemies (including an evil black type of Paccet), Mappy-style "HURRY" warnings that appear if you remain in one place for too long (if these warnings are not heeded, a Turning Eye will creep up on you from behind), and six "secret" stages that could only be accessed if you managed to beat the final boss on your first try.