Bonanza Bros. (c) 1990 Sega.
Taking the roll of one of the 2 brothers, Robo and Mobo (or both, in 2-player mode), players must make their way through a variety of scrolling platform levels and steal any loot they find, before making their way to the roof and escape in a waiting airship. Bonanza Bros. introduced a true sense of 3-D depth to the 2-D platform gameplay in that the enemy guards had a 'field-of-vision'; this made it possible for players to hide from the guards by ducking into alcoves, stairwells etc. Failure would see the brothers end up in jail.
The places the brothers burgle include a bank, a millionaire's mansion, a casino, a mint, an art gallery and a treasury.

>>> TECHNICAL DETAILS
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Sega System 24 hardware
Main CPU : (2x) 68000 (@ 10 Mhz)
Sound Chips : YM2151 (@ 4 Mhz), DAC (@ 4 Mhz)
Screen orientation : Horizontal
Video resolution : 496 x 384 pixels
Screen refresh : 58.00 Hz
Palette colors : 16384
Players : 2
Control : 8-way joystick
Buttons : 3

>>> GAME UPDATES
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The US version is slightly different, it has the 'Winners Don't Use Drugs' screen.

>>> GAME PORTS TO OTHER SYSTEMS
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* Consoles :
Sega Master System (1991)
Sega Mega Drive (1991)
NEC PC-Engine (1992)
NEC PC-Engine Super CD-ROM2 (1992)
Sony PlayStation 2 (2003, 'Sega Ages 2500 Vol. 6 : Bonanza Brothers')
Sony PlayStation 2 (2006, 'Genesis Collection')
Sony PSP (2006, 'Genesis Collection')
Nintendo Wii (2006, 'Virtual Console' - Mega Drive version)
* Computers :
Amstrad CPC (1991)
Atari ST (1991)
Commodore Amiga (1991)
Commodore C64 (1991)
Sinclair ZX Spectrum (1991)
Sharp X68000 (1991)

>>> OTHER GAME RESOURCES
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Game's rom.