Bonanza Bros.

Bonanza Bros.

Company type	Video game
Industry	Video games
Founded	1990
Founder	Sega
Products	Bonanza Bros. (video game)

is a side-scrolling stealth action title featuring 3D-style visuals, developed and launched by Sega in 1990. As one of the pioneering releases on the Sega System 24 arcade hardware, it was subsequently adapted for several home consoles and computer systems, including the Mega Drive/Genesis, Master System, PC-Engine/TurboGrafx-CD, and various personal computers.

The game earned acclaim for its visual design, musical score, and character interactions, which helped boost its market success. Over time, it has been remastered and re-released on multiple platforms.

Gameplay

Bonanza Bros. combines elements of side-scrolling stealth action with shooter and platform mechanics. Players assume control of one or both brothers—Robo (1P, red) and Mobo (2P, blue) (known as Mike and Spike in some PAL editions)—characters reportedly inspired by The Blues Brothers. The main goal is to stealthily infiltrate buildings, evade security guards, collect specific items within a set time frame, and escape via the rooftop where a blimp awaits to carry off the stolen goods. Its gameplay draws parallels to Keystone Kapers while incorporating aspects reminiscent of Lock 'n' Chase. The game supports two-player cooperative play with a split-screen display.

Missions take place in locations such as banks, mansions owned by millionaires, casinos, mints, art gallerys, and treasuries. The storyline differs depending on the region: in Japan, the brothers are portrayed as thieves seeking valuable treasures for profit; whereas early Western versions depict them as agents working under Badville's Police Chief to test security systems and retrieve incriminating evidence from corrupt enterprises—facing imprisonment if they fail.

Players can move by walking or jumping, use firearms to temporarily stun guards, and hide behind environmental objects like columns or furniture to avoid detection. Guards react to noise or visual cues by hiding, summoning reinforcements, or attacking. Certain guards carry riot shields and can only be harmed when retreating. Losing a life occurs if players are caught by guards or dogs, crushed by doors, or miss jumps onto springboards or ziplines—resulting in dropped items. Running out of time also causes a life loss and restarts the current stage.

Development

Sega utilized advanced computer graphics technology to create "vividly detailed characters and environments" for this title.

Ports

The original arcade version was adapted for multiple systems including the Sega Mega Drive, Master System, TurboGrafx-CD (exclusively in Japan), ZX Spectrum (Europe only), Amstrad CPC (Europe only), Commodore 64, Amiga, X68000 (Japan only), and Atari ST. These ports feature slight graphical variations and some gameplay adjustments, particularly within bonus stages.

Reception

In July 1990, Game Machine ranked Bonanza Bros. as the third most popular arcade game in Japan.

Julian Rignall from Computer and Video Games commended its creativity and "impressive" visuals, describing it as a "tense hide-and-seek experience" that emphasizes strategy over reflexes. Sinclair User recommended the title for gamers who appreciate careful planning and timing rather than fast-paced action.

Mega Zone praised the Mega Drive version’s digitized voice work and clever character design, comparing its humor to classic slapstick comedy. While MegaTech enjoyed the entertaining two-player mode, it criticized the overall low difficulty level. Console XS appreciated the Genesis edition’s presentation and graphics but also noted that it lacked challenge.

Gamesradar placed Bonanza Bros. at number 47 in their list of "Best Sega Genesis/Mega Drive games of all time."

Legacy

Bonanza Bros. has been included in several Sega compilation releases, such as the Japanese edition of Sonic Gems Collection (omitted from versions released outside Japan), Sega Ages for the PlayStation 2, and the English-language Sega Classics Collection. The title also featured in the Sega Genesis Collection available on PlayStation 2 and PlayStation Portable, and subsequently in Sonic's Ultimate Genesis Collection for Xbox 360 and PlayStation 3. More recently, players can enjoy it through Sega Genesis Classics on platforms including PlayStation 4, Xbox One, Nintendo Switch, and PC.

The series was further developed with three spin-off titles: Puzzle & Action: Tant-R (1992), Puzzle & Action: Ichidant-R (1994), and Puzzle & Action: Treasure Hunt (1995). Unlike the original action-oriented gameplay, the first two spin-offs are puzzle games and were adapted for the Sega Mega Drive and Sega Saturn. These were later packaged together with the Bonanza Bros. release in the Sega Ages collection for PS2. The third installment was initially launched in arcades and subsequently ported to the Sega Saturn exclusively in Japan.

Because of its violent themes, Bonanza Bros. was excluded from US and PAL editions of Sonic Gems Collection, alongside the Streets of Rage franchise, to comply with a consistent rating standard. Nevertheless, it remained part of North America's Sega Genesis Collection on PlayStation 2.

On January 29, 2007, the Mega Drive/Genesis version was made available on the Wii Virtual Console in North America, followed by its European release on February 2, 2007. Additionally, a mobile phone adaptation was created for SoftBank Mobile devices.

Characters Robo and Mobo from the game appear as playable racers in Sonic & Sega All-Stars Racing and make cameo appearances in its sequel, Sonic & All-Stars Racing Transformed. Furthermore, a slot machine themed after "Bonanza Bros." was produced by Aristocrat Leisure.

External links

• Bonanza Bros. at arcade-history
• Genesis Collective Page
• Bonanza Bros game port on Sega Mega Drive
• Bonanza Bros for Sega Mega Drive at gamefaqs
• Bonanza Bros playable for free on the Internet Archive