1 hit destroys the Vortex Queen's tentacle (she's much easier to defeat without her tentacle). by Tony Hedstrom
Game Genie
RERT-6612
1 hit kills the Vortex Queen. by Tony Hedstrom
Game Genie
RESA-66T0
3 in 1 code: Invincibility, swim thru most walls/rocks, and swim thru most barriers that block your exit to the next section or level. by Tony Hedstrom
Game Genie
RGTA-W618
Always have 360-degree sonar blast by Galoob
Game Genie
A4KT-2A38
Can swim thru most barriers (rocks, etc) that block your exit to the next section or level. by Tony Hedstrom
Game Genie
ACKA-TA4G
Can swim thru the Glyphs (the diamond shaped things) that are blocking your exit in the sky water tubes. by Tony Hedstrom
Game Genie
L30T-YA8E
Disables laser beam in the Vortex Queen level. by Tony Hedstrom
Game Genie
AAPA-6A6C
Eating fish does not heal at all (Most of the time) by Galoob
Game Genie
ADLA-WAD4
Eating fish heals 1/2x as much as usual (Most of the time) by Galoob
Game Genie
BDLA-WAD4
Eating fish heals 2x as much as usual (Most of the time) by Galoob
Game Genie
EDLA-WAD4
Eating fish heals Ecco completely (Most of the time) by Galoob
Game Genie
HDLA-WAD4
Ecco jumps much higher. by Tony Hedstrom
Game Genie
93BA-V95N
Ecco swims much faster when using the C button. by Tony Hedstrom
Game Genie
CC7A-TAB8
Ecco swims through rocks and barriers by pressing the B (Dash) button. by Tony Hedstrom
Game Genie
GB2A-TAA4
Hit the Vortex Queen from anywhere while she can take damage (she can only take damage while she is retreating into her hole). by Tony Hedstrom
Game Genie
RE2T-66YJ
If the Vortex Queen swallows you, you will end up back at the Vortex Queen, instead of in the Alien World (The Machine). by Tony Hedstrom
Game Genie
FYMT-6AFA
Infinite air by Galoob
Game Genie
AKZA-TA7A
Infinite Air by Parasyte
Raw
FFAA18:0400
Infinite Health by Parasyte
Raw
FFAA16:0040
Infinite health and air by Galoob
Game Genie
REAA-W6V0
Invincibility (Stars) by Hacc
Raw
FFAB6C:0258
No rings lost for missing gates in 3D stages by Galoob
Game Genie
ALBA-4A8R
No rings lost for shooting gates in 3D stages by Galoob
Game Genie
AKCT-4A7N
Only have to swim thru one ring to exit the 3D stages. by Tony Hedstrom
Game Genie
AF1T-4ABA
Pause the game and press A for Debug Menu by terpsfan101
Game Genie
BHFA-VN8J
RHFA-T604
Swimming in the air. by Chemist
Game Genie
RFDA-T60A
Swimming through walls. by Chemist
Game Genie
ACHT-TA7L
The Vortex Queen can't swallow you. by Tony Hedstrom
Game Genie
RERT-66WE
JJRA-6A4G
The Vortex Queen's tentacle tends to stay inside her mouth (makes her easier to defeat). by Tony Hedstrom
Game Genie
AALT-6A9T