1 Hit And Untouchable by Fanat
Game Genie
RY1A-A6TC
9 Lives by Galoob
Game Genie
AASG-ATZE
Boss Dies by CRACKdown
Raw
FF4934:0000
Character Modifier by CRACKdown
Raw
FF486E:00??
Infinite Energy by VisitntX
Raw
FF404C:0028
Infinite Flounder Time by CRACKdown
Raw
FF4BB4:0008
Infinite Flounder, Sebastian, Digger Fish by Fanat
Game Genie
 AJ2T-AA3R
Infinite Health by Fanat
Game Genie
 AT4A-AA8C
Infinite Keys by Fanat
Game Genie
 AX1T-NA34 
Infinite Lives by VisitntX
Game Genie
AJ2A-AA9Y
Infinite Lives by VisitntX
Raw
FFA60E:0505
Infinite Lives by Datel
Raw
FFA60F:0004
Infinite Special Weapon by Fanat
Game Genie
AJ2A-AA7J
Infinite Super Weapon by Datel
Raw
FFA610:0016
Last Level by Galoob
Raw
IAKK-GTAA
Level Modifier by CRACKdown
Raw
FF8000:00??
More Keys by Datel
Raw
FFA60E:0005
More Treasure by Datel
Raw
FFA60D:0099
Most Enemies Can't Harm You by CRACKdown
Raw
FF3FF6:0003
Open the shop anywhere by pressing A+UP by luc-ita
Game Genie
FAVT-APPJ
JAVT-AYFL
JEVT-AAFN
BAVT-AN7R
9TVT-BGFT
AEVT-AAFW
96VT-B97Y
LNVT-AAZ0
Press Start to open the shop anywhere by luc-ita
Game Genie
A2VA-AACN
AJVA-B5LR
Shop items cost zero by luc-ita
Game Genie
HV4A-DANJ
AB4A-CAEL
Take objects, and hit enemies, anywhere by luc-ita
Game Genie
AK0T-AA56
RF0T-A6ZL
BL8A-P5S6
Unlimited Digger Fish by Datel
Raw
FFA614:0005
Unlimited Energy by Mr. Book
Raw
FFA611:0028
Unlimited Flounder by Datel
Raw
FFA612:0005
Unlimited Sebastian by Datel
Raw
FFA613:0005
Untouchable - without flickering by luc-ita
Game Genie
RY4A-A6ZY
A21A-AA5E