Megaman X2

Third X-hunter level
Enter 1462-3327-6482-3242 as a password.

All Bosses defeated
Enter 3467-8843-3528-7651 as a password.

First X-hunter stage after all Bosses defeated, all hearts, all energy tanks, all special capsules
Enter 8377-8143-6822-7651 as a password.

No levels completed, with all heart tanks, reserve tanks, and upgrades collected
Enter 4242-7183-1546-1681 as a password.

All power-ups and 3 Zero parts collected; all opponents except X-Hunters, defeated
Enter 3366-7123-6188-3681 as a password.

All sub tanks, hearts, and upgrades with only wire sponge left
Enter 2272-7123-1478-3446 as a password.

All Bosses defeated and all items
Enter 5462-3327-6488-3246 as a password.

Start with all of Zero's parts
Enter 7741-7732-3451-2748 as a password. Note you will lose the items when you reach the Robot Screen due to a security reset on all passwords.

Hints & Tricks - Getting the Dragon Punch:
Get to the third X-hunter stage and continue until reaching a location with two ladders, one on the ground and one near the ceiling, that is unreachable. Lure a bat towards the ceiling ladder. Use the ICQ on the bat, then jump on the bat to reach the ladder. Kill the man with the shield. Allow the bat that appears to follow your character. Shimmy across the wall to the single spot without spikes. Quickly tap B, A to reach a safe spot. Walk up the small set of stairs to find more spikes. Bump into the bat that followed your character to become invincible for a short amount of time. Quickly move past the spikes and use an energy tank, Shimmy down the left wall until your character falls into a room with a capsule. Enter to get the Dragon Punch. To use it, press Forward, Down, Down/Forward, Y after your character is at full health.

Hints & Tricks - Alternate Wire Sponge victory animation:
If you defeat Wire Sponge with his weakness, he will split in half and explode instead of just exploding.

Hints & Tricks - Getting Zero's parts:
If you do not get all of Zero's parts you have to fight him until he breaks through Sigma's powers. Here are a few items that could help.

Another way to damage him is to use the Speed Burner. Note: This will not block shots, so wait until he is not on the offense nor defense. The Speed Burner will not damage him if he is blocking.

To block shots easily and quickly, use the Spin Wheel. Note: This will not harm Zero -- it will only block shots.

Hints & Tricks - Race against Zero:
Successfully complete the game without getting any armor upgrades. In the ending credits, you will see Zero dash past you when the screen shifts.