Go to Sting Chameleon's level. The armor is up in a corner of a wall right above the entrance into the main level. To be able to get this, you must have Leg Armor. Climb up the wall, and there is a boss waiting for you. Defeat him, and the armor will appear in about ten seconds.

When the game begins type "xstuff" for all weapons and tanks and no sub-bosses.

Go to Storm Eagle's stage. There is a section where with a long tall white grayish matter of some sort, with another side. Go to the other side. Blow up the dynamite. Dash on the edge and land on the other side where the dynamite used to be. Go to the end and there is the capsule.

Go in to Chill Penguin's level and play a normal game.

On the Armored Armadillo stage, towards the end when you fly into the mountain on the trolley climb up the mountain, and collect anything that you find up on top. Now Beat Armored Armadillo and return to this level.

Go through the level 5 or 6 times without using any weapon but the x-buster or sub-tank with all body enchancements and heart tanks. On the 5th or 6th time doing this you should see Dr. Light in a ninja costume. Get it and you will get a secret weapon which can only be used with full health.

Go to Flame Mammoth's stage. Play until you fall down a big hole which leads to the section with the heart. Jump on the rim, and then dash and land on the wall, and keep going until the top. There is another capsule waiting for you.