O.K. here's a over size load of Super Mario Gameshark Codes. Careful you don't get lost!

Backstroke Mario: 8033B221 0000

Backstroke Mario: 8033B3BC 00C0

Backstroke Mario: 8033B3BE 0080

Backstroke Mario: A1254A30 0000

Backstroke Mario: A1254A32 0000

Walk Up Hills: A1253DAC 0000

Walk Up Hills: A1253DAE 0000

Walk Up Hills: A1253DB0 0000

Walk Up Hills: A1253DB2 0000

Monsters Don't Hurt Mario: A125460C 240B

Monsters Don't Hurt Mario: A125460E FFFF

Monsters Don't Hurt Mario: A1254610 A54B

Monsters Don't Hurt Mario: A1254612 0026

Monsters Don't Hurt Mario: A1254614 1000

Monsters Don't Hurt Mario: A1254616 000C

Remove Mario's Cap: A1254A30 0000

Remove Mario's Cap: A1254A32 0000

Super Fast Game: A1248154 0000

Super Fast Game: A1248156 0000

Press GS button for 99 Coins: 8933B218 0063

Unlimited Lives: 8033B21D 0064

Unlimited Energy/Breath: 8133B21E 008F

Debug Mode: A032D598 0001

Sound Display: A032D594 0001

Unlimited Hat Usage: 8133B226 FFFF

No Power Display: 803325F4 0001

Invisible Mario: 8033B220 0020

Half Mario: 8033B221 0000

Limbo Mario: 8033B3BC 00C0

Kneeling Mario: 8033B3BC 0050

Big Fist Mario: 8033B3BB 0010

Strobe Lights: 8133B054 0095

Mario Runs Backwards: 8033B3BE 0080

Level Select: A032D58C 0001

Big Right Foot: 8033B3BB 0090

Growing/Shrinking Left Fist: 8033B3BB 0050

Mario Runs Bent over: 8033B3BC 0050

Strobe Mario: 8133B054 0095

Rubber Walls & Weird Voices: 8133B174 1111

Mario Missing Foot: 8033B3BB 00B0

Die Instantly: 8033B222 0020

Heavy/Short Mario: 8033B224 00A0

Mario Opens & Closes His Right Hand: 8033B3B6 0020

Don't Lose Energy As Fast: 8033B222 0000

Only Have a Little Energy After You Die Once: 8033B223 0000

Flashing MarioA1254612 0000

Down-Right-Backwards Looking Mario When Running: 803303BE 0090

Mario Faces Left & Sideways When Running: 8033B3BE 0050

Mario Faces Right When Running: 8033B3BE 00B0

Upside Down Torso: 8033B3BC 00803

strich Mario: 8033B3BC 0070

Down-Left-Backwards Looking Mario When Running: 8033B3BE 0070

Backwards Ostrich Mario: 8033B3BC 0090

Mega Jump: 8133B1BD 0010

Hover Mario: 8133B1BD 0000

Super Mega Jump: 8133B1BD FFFF

Rocket Man: 8133B1C5 FFFF

Easier to Control Rocket Man: 8133B1C5 FFDD

Pull Back on The Control Stick to Slide: 8133B1C5 00F0

Flashing Invincible: 8133B196 0070

Forces Act on Mario: 8133B1B6 0030

Bumpy Flight: 8133B1A3 FFFF

Mario Always Goes Forward: 8133B19E FFFF

Hard Turning in Water: 8133B1A4 0070

Mario Swims in a Straight Line: 8133B1A4 0000

When Flying Can Not go Down or Up: 8133B19C FFFF

Go Nowhere Mario: 8133B1C5 0010

Impervious to All Falls: 8033B22C 0001

Mario Can Only Swim & Fly in One Direction: 8133B1A4 FFFF

Star Glitter: 8133B17A 00085

stops Controller Use: 8933AFA9 0070GS

Button to Keep Mario Running Towards Upper Right Hand: Corner: 8933AFAA 0070

Rubber Walls: 8133B174 FFFF

Crazy Camera: 8133AFA3 0095

Jumping Hurts: 8033B22C 0078

Can't Enter Doors: 8133B18F 0001

Doors Enter Opposites: 8133B18F 5555

Doors Lead to Back to Where You Started: 8133B18F FFFF

Falling Does Not Hurt Mario: 8033B22C 00E8

Falling Does Not Hurt Mario: 8133B178 FFFF

Smoking Mario: A1254A30 0000

Smoking Mario: 8133B176 FFFF

All Cap Powers: A1254A30 0000

Strange Sounds: A132D51D 00D1

Long Jumping: A1256BA7 0000

Bring Back Water From The Drained Moat: 8133B1E2 0000

Seniro Change: 8133B426 0070