Bonanza Bros.
Bonanza Bros. remains one of the finest action experiences on the Sega Genesis. Its innovative design and addictive gameplay have earned it a permanent place in gaming history.
- Developer
- SEGA
- Platform
- Mega Drive
- Genre
- Action
- Players
- 2P
- Rating
- 4.6 / 5 (1.2K)
- Last updated
Bonanza Bros. Controls — Mega Drive Keyboard Keys
Default keyboard bindings for Bonanza Bros. on our in-browser Mega Drive emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | D-Pad Up | Move up |
| ↓ | D-Pad Down | Move down |
| ← | D-Pad Left | Move left |
| → | D-Pad Right | Move right |
| X | A | Primary action (jump / confirm) |
| Z | B | Secondary action (attack / cancel) |
| S | C | Tertiary action |
| A | X | Quaternary action |
| Q | Y | Fifth button |
| W | Z | Sixth button |
| Enter | Start | Start / Pause |
These bindings cover the 6-button Mega Drive controller. Most older titles only use buttons A/B/C; the extra X/Y/Z buttons matter for Street Fighter II and other 6-button fighters.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Bonanza Bros. Longplay & Gameplay Videos
Watch a full playthrough of Bonanza Bros. on Mega Drive before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Bonanza Bros." Mega Drive longplay
Bonanza Bros. Cheat Codes
30 community-curated cheats for Bonanza Bros.. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
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Invincibility
R0JA-A6YTAB0A-CR529WKT-BGKL+ALKT-AABN+1 -
Alternate Invincibility
9TDT-BGGY+AEDT-AAG0+96DT-AAG2+12DT-BN04 -
1 Hit Invincibility
FF56C0:0010 -
Invincibility/Untouchable P1. You can pass through enemies and bullets
RZDA-C6VL+RZDA-C6YN+R0JA-C6V6+R09T-C6XA+R1DT-C6WC+R0LA-C6ZE+R0VT-C60L -
Invincibility/Untouchable P2. You can pass through enemies and bullets
RZDA-C6ZL+RZDT-C6TN+R0JA-C6X0+R09T-C6Z0+R1DT-C6YC+R0LA-C608+R0VT-C61L -
Start clock at 1 minute instead of 3
AECA-CAF8+AE2T-CACA+AE4T-CAEW -
Start clock at 2 minutes
AJCA-CAF8+AJ2T-CACA+AJ4T-CAEW -
Start clock at 6 minutes
A2CA-CAF8+A22T-CACA+A24T-CAEW -
Start clock at 9 minutes
BECA-CAF8+BE2T-CACA+BE4T-CAEW -
Infinite time
LTDA-CA8TAJDA-CA5LFADA-CY0T+1 -
Sets player lives lower limit on option screen to 1
968T-B946+AE8T-AADW -
Sets player lives upper limit on option screen to 9
968T-B946+BN8T-AADL
Show 18 more cheats Show fewer
-
Player 1 starts with 25 lives
AA6T-AAGJ+3T6T-BF8L -
Player 2 starts with 25 lives
AA6T-AAHR+3T6T-BF9T -
Player 1 continues with 25 lives
AA2T-CACW+3T2T-DF4Y -
Player 2 continues with 25 lives
AA4T-CAFE+3T4T-DF7G -
Infinite lives (player 1)
PBKT-AA68 -
Infinite lives (player 2)
PVLA-AA3L -
Infinite credits (player 1)
AT2T-CA3E -
Infinite credits (player 2)
AT4T-CA50 -
Start on stage 2
AJBT-AAF6 -
Start on stage 3
ANBT-AAF6 -
Start on stage 4
AYBT-AAF6 -
Start on stage 5
A2BT-AAF6 -
Start on stage 6
A6BT-AAF6 -
Start on stage 7
BEBT-AAF6 -
Start on stage 8
BJBT-AAF6 -
Start on stage 9
BNBT-AAF6 -
Start on stage 10
BYBT-AAF6 -
Infinite Lives
D7KT-AACGFFC054:0003
External references
Frequently Asked Questions
Who developed Bonanza Bros.?
Bonanza Bros. was developed by SEGA, available to play in your browser on RetroGameSpace.
How many players does Bonanza Bros. support?
Bonanza Bros. supports up to 2 players, ideal for couch co-op or competitive sessions on the Mega Drive.
What type of game is Bonanza Bros.?
Bonanza Bros. is a Action game for the Mega Drive, playable instantly in your browser — no downloads, no installs.
How can I play Bonanza Bros. for free?
Open this page and click "Play Now" — Bonanza Bros. runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Bonanza Bros. in the browser?
No. Bonanza Bros. streams from a public archive into a browser-side Mega Drive emulator. Nothing is installed on your computer.
Can I save my progress in Bonanza Bros.?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Mega Drive cartridge supported.
Does Bonanza Bros. work on mobile devices?
Yes — the Mega Drive emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Bonanza Bros. this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Bonanza Bros.. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
