SpongeBob SquarePants: Revenge of the Flying Dutchman Cheats for GBA

the code for the final level is H051J2

To activate this feature enter the code 'D3BVG-M0D3' (without the quotes) at the 'Password' screen.

Select 'Continue' at the 'Main' screen and enter the following codes to unlock the corresponding chapter in Hard mode.
Unlock Chapter 2 Bonus Game (Jellyfish Round-up):
Enter the code LCQBV5
Unlock Chapter 2 Boss (Wild Jellyfishing):
Enter the code QCRBX5
Unlock Chapter 2 Level 1:
Enter the code LBGBBN
Unlock Chapter 2 Level 2:
Enter the code LBGBV5
Unlock Chapter 2 Level 3:
Enter the code QCQBV5
Unlock Chapter 3 Bonus Game (Kara-tay at the Treedome):
Enter the code QPRV16
Unlock Chapter 3 Boss (Alaskan Bullworm):
Enter the code QTRZ26
Unlock Chapter 3 Level 1:
Enter the code QCRBX6
Unlock Chapter 3 Level 2:
Enter the code QFRVX6
Unlock Chapter 3 Level 3:
Enter the code QPRZ16
Unlock Chapter 4 Bonus Game (Krabby Patty Napping):
Enter the code 9TT12?
Unlock Chapter 4 Boss (Plankton):
Enter the code 9??92?
Chapter 4 Level 1:
Enter the code QTRZ2?
Chapter 4 Level 2:
Enter the code 7TR12?
Chapter 4 Level 3:
Enter the code 9T?12?
Chapter 5 Level 1:
Enter the code ???92?

Enter the following codes to unlock the corresponding area.
Unlock Chapter 1 - Level 1:
BBBBB
Unlock Chapter 2 - Level 1:
BBBBN
Unlock Chapter 2 - Level 2:
VBBDBN
Unlock Chapter 2 - Level 3:
XBXDBN
Unlock Chapter 3 - Level 1:
VVXNBN
Unlock Chapter 3 - Level 2:
VXX5BN
Unlock Chapter 3 - Level 3:
V5X9GN
Unlock Chapter 4 - Level 1:
V9X9HS
Unlock Chapter 4 - Level 2:
V9X909
Unlock Chapter 4 - Level 3:
2?5909
Unlock Chapter 5 - Final Level:
2?692?
Unlock ALL Levels Perfect except Final Chapter:
2?692?
Special Stage - Jellyfish Roundup:
V?5909
Special Stage - Kara-tay at the Treedome:
V5X5GN
Special Stage: Krabby Patty Napping:
XBDDBN
Boss Fight - Alaskan Bullworm:
V9X9HN
Boss Fight - Plankton:
XVXNBN
Boss Fight - Wild Jellyfish:
2?6929

These are some codes of my game codes:
jellyfish boss gcbdd5
plankton boss jwxdd5
clambake gcbbd6
all levels ???92?
catch gary bbbbbn
Under the boardwalk jwxxd6
Kara-try at the treedome jwxxj6
side show spongebob jwx1j6

To unlock all levels on hard setting, including the bosses and final level with the flying Dutchman, select continue and enter in ???92? to unlock all levels.