Bonanza Bros. (sometimes written Bonanza Brothers) is a 3D 1990 arcade game by Sega later ported to the Sega Mega Drive, Sega Master System, ZX Spectrum, Amstrad CPC, Commodore 64, Amiga and Atari ST in 1991, as well as included in the Japanese version of Sonic Gems Collection (it was removed in the Western release). It has also seen a Sega Ages release on the PlayStation 2, and that version was included in the English compilation Sega Classics Collection.
Bonanza Bros. is a platform game where taking the role of one or both of the brothers, Robo and Mobo (Mike and Spike in some PAL versions), the player has to stealthily move inside a house avoiding guards, retrieve several objects and move to the roof where a non-rigid airship is expecting the player with the loot. Two players can play cooperatively at the same time, as the screen is always split in two.
The player can walk, jump, shoot and move behind a column or large furniture, which allows both hiding and dodging shots from...
full article at wikipedia