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Official Site: Toaplan

is a 1989 side-scrolling shoot 'em up arcade game developed by Toaplan and published by Taito. The player is a lone hero who will save the universe from an evil force.

It enjoyed a degree of success in arcade and was subsequently ported to the Sega Mega Drive by Toaplan on May 31, 1991 in Japan, and by Sega during the following year in Europe, followed by a PC Engine CD-ROM release by Naxat Soft on September 18, 1992 only in Japan.

The European version of the Sega Mega Drive port was the source for "All your base are belong to us", an Internet meme which plays off of the poorly translated English in the game's introduction.

As with other scrolling shooters, the aim of the game is to shoot all enemies that appear on screen and avoid getting obliterated by enemy fire, crashing into enemies or into foreground scenery. There are mid-level and end-of-level boss enemies that stay with the player until they are defeated. The game features eight levels, each a few minutes long and featuring different styles and enemies: Natols, Legrous, Pleades, Aquese, Submarine Tunnel, Barricade Zone, Bellon, Gerbarra.

CATS has not been a contender in any CBUB matches.