Bonanza Bros.

In Bonanza Bros. on the Sega Mega Drive, players control Robo (red, 1-player) and Mobo (blue, 2-player) in a side-scrolling stealth action platformer. The core gameplay involves stealthily infiltrating buildings and non-linear environments like casinos, jewelry stores, mints, and cruise ships, collecting all treasures within a strict 3-minute timer per stage while avoiding guards. Players can walk, jump, shoot with a slow-firing gun that stuns enemies for seconds, duck behind furniture or columns for cover, and slam doors to knock out foes. Two-player mode splits the screen horizontally for independent exploration, with a central map showing both players and treasures. Guards move in patterns, call for help, or fire if spotted, and some (like shielded SWAT or bomb-throwing guards) require clever backshots or environmental use (e.g., 10-ton weights). The story follows the brothers as thieves exposing corrupt businesses in Badville (or evidence-gathering for the police in some regions), with characters inspired by The Blues Brothers. It stands out for its unique 2-player cooperative split-screen stealth mechanics, humorous tone, and tight clockwork tension that rewards planning over raw aggression.