6-Pak

Sonic debug code

When Sonic is wagging his finger at the title screen, press Up, C, down, C, left, C, right, C then press and hold A and C and press start. You will know if this code has worked or not because all the score and time area will have lots of numbers and letters when the level starts. B changes Sonic into a different sprite, A switches through the sprites and C will place a sprite into a level.

Contributed By: Rugal.

Infinite shuriken in The Revenge of Shinobi

Go into the options menu and change the ammount of shuriken to 00. Wait for around 20 seconds and the 00 will change into a infinite symbol. You will now have a unlimited supply of shurikens to use in the game.

Contributed By: Rugal.

Get an extra magic jewel

Columns Extra Magic Jewels
There is a way to trick the game into giving you a second magic jewel. To do this you must set up the screen in a certain way. Have one row of the normal jewels stacked up almost to the top of the playfield. There must be vertical space for only two of the three jewels in the next block to come on the screen. Watch the "Next Block" preview box. When you see that the magic jewel block is next, get ready to quickly move it on top of your prepared stack. After the magic jewel eliminates the 'touching' color jewels, all of the remaining jewels will drop down as will the one magic jewel that was off the screen. This magic jewel will drop down and eliminate another group of colored jewels.

Contributed By: DarknessofFate.

Level select:

Select arcade mode. Hold Down/Left + B and press Start at the character selection screen. A number that corresponds to the starting level will appear in the upper left corner of the screen. Use the D-pad to change it to the level you want.

Contributed By: wallywest80.

Unlock Different ending

Contributed By: Pizzaman13.

Walk through walls in Marble Zone

When you ride the green block accross a sea of lave, there are a couple of big blocks in front of you with rings on. If you hold the D-PAD DOWN button, Sonic will crouch. The green block will go underneath the blocks, but sonic will remain on it, and pass through the walls. Note that this ONLY WORKS WHILE CROUCHING

Contributed By: reddragonflame.

Level and Lives Select

Go to the main menu. Hold down (A) + (B) + (C) + RIGHT on controller 2 while selecting Options on controller 1 (best if done with two people). You can now select how many lives you start with and which stage to start on.

Contributed By: NTsui.

Unlock 'Easiest' and 'Manic' game modes.

Hold A+B on pad 2 whilst pressing Start on the title screen on pad 1.

Contributed By: mingonia.

Get Bad Ending

Choose to be Mr X's right-hand man the first time you meet him. Then
complete the game.

Contributed By: RHarrison.

Start Arcade Mode with 10 grand

At the main menu, highlight Arcade Mode and enter the code.

Contributed By: mingonia.

Ultimate Bike Password

You can use this password in arcade mode to play with the best bike available.

Contributed By: DDRBoy919.

Open the 'Stage Practice' Mode

Open the 'Stage Practice' Mode on the main Screen, where you can practice any level that doesn't have a boss.

Contributed By: mingonia.

Mystic Shield

When you have the Weapons Upgrade item, walk and you'll notice the shinobi holding a light on his wrist. This light is the Mystic Shield. It will protect you against small projectiles like ninja stars and bullets, but not against bigger ones like the grenades the soldiers throw.

(Note: The shield is only activated when you walk.)

Contributed By: REIKANE 6379.