Boulder Dash EX CodeBreaker Codes (USA)
This page contains CodeBreaker cheat codes for Boulder Dash EX (USA). If you're playing on an emulator you can usually input codes very easily by accessing a tab off the top of the toolbar. Anyone playing on a physical Gameboy will need to purchase a physical Gameshark device to use these codes.
If you're using an emulator and still can't figure out how to setup these codes, you're in luck! There's two common emulators for GBA games, the mGBA and VisualBoy Advance. Follow the link provided for the emulator you're using to be taken to a guide explaining how to get these codes working.
Boulder Dash EX Master Code
0000EF14 000A
10000E34 0007
Critter Proof Ex Game: 8201A1BE 0201
One Jewel to Collect Ex Game: 8201A142 0001
World of Sand Open World: 32018194 0001
World of Fire Open World: 32018195 0001
World of Water Open World: 32018196 0001
World of Ice Open World: 32018197 0001
World of Evil Open World: 32018198 0001
Classic Game Unlimited Lives: 320139EA 0009
Classic Game One Jewel to Collect: 320139EE 0001
Watch Opening Scene: 320185BF 0001
Watch Scene I: 320185C0 0001
Watch Scene II: 320185C1 0001
Watch Scene III: 320185C2 0001
Watch Scene IV: 320185C3 0001
Watch Scene V: 320185C4 0001
Watch Scene VI: 320185C5 0001
Ex Game Unlimited Life
7201A238 0000
8201A1AC 2710
Have All Cards
420183D4 0101
00000014 0002
World of Forest Open Stage
3201819B 0001
4201819C 0101
00000004 0002
320181A4 0001
World of Sand Open Stage
420181AA 0101
00000005 0002
World of Fire Open Stage
320181B9 0001
420181BA 0101
00000004 0002
320181C2 0001
World of Water Open Stage
420181C8 0101
00000007 0002
320181D6 0001
World of Ice Open Stage
320181D7 0001
420181D8 0101
00000007 0002
World of Evil Open Stage
420181E6 0101
00000007 0002
320181F4 0001
Classic Game - Open All Caves
420185C6 0101
00000008 0002
Classic Game - Open All Levels
42018560 0101
00000025 0002
320185AA 0001