Mummy, The (GBA)
CheatingDome.com
Unlock all maps
Enter level code as KLDQ and you should have every map unlocked.
Various Passwords
128T
XXNY
9*8N
S50N
KH8G
TH8Z
TK*D
BHN0
BGPH
DBHH
DDHF
XXHY
55HX
DBKQ