Mega Man X3/Upgrades

Neon Tiger (X-Buster Upgrade)
Get Tornado Fang and Leg Upgrade. When you see a dark gray cracked wall, use the Tornado Fang to burst through the wall, get in the secret room, and use the Leg Upgrade to reach the capsule.

Blizzard Buffalo (Leg Upgrade)
At the near of the stage, stand at the end of the bridge, and do the dash jump. Make sure you are touching the edge and get in to reach the capsule.

Tunnel Rhino (Helmet Upgrade)
Get Triad Thunder and X-Buster Upgrade. After you encountered with Bit (or Byte if Bit was destroyed), reach to the place with the giant boulder blocking the path, charge up the Triad Thunder, and proceed left to the capsule.

Volt Catfish (Torso Upgrade)
Get Gravity Well and X-Buster Upgrade. Reach to the large green-colored platform, and get on it. Charge up the Gravity Well to make the platform go up, and go right to the capsule.

Enhancement Chips
''Note: You can only have one enhancement chip at the time. So choose it wisely.''

Gravity Beetle (X-Buster Enhancement)
Get at least two Robot Walkers. After a tall vertical area, go right and jump up to the high wall. Get on the Robot Walker platform, select a Robot Walker, and proceed until you find a cracked wall. Smash it, jump off the Robot Walker, and enter the room to reach the capsule.

Blast Hornet (Helmet Enhancement)
Get to the top of the conveyor belt, go down and right to the wall. Jump up until you reach to the spiked part, dash jump directly upward to reach the capsule.

Toxic Seahorse (Leg Enhancement)
Get at least two Robot Walkers (including Frog). Get on the Robot Walker Platform, select Frog, get in the underwater, destroy the fans on the right wall, get off the Robot Walker, and go right to the capsule.

Crush Crawfish (Torso Enhancement)
Get at least two Robot Walkers. Get on the Robot Walker Platform, select any of it (except Frog), reach to the tunnel that resembles a bottomless pit, but it's actually a level. Drop down, and burst through the wall and proceed to reach the capsule.

Golden Armor
Acquire all four sub-tanks, all eight heart tanks, all four armor upgrades (don't get any enhancement chips) all four Robot Walkers, and defeat all eight Mavericks. Before heading to the first Dr. Doppler stage. In the first Dr. Doppler stage, kill the mini boss and proceed. Make sure you have full health before sliding down the left side of the first pit you find (where spikes fall) until you reach a portion of the wall that you can walk through. There will be a pink upgrade station that will give you all four armor upgrades and the additional Golden Armor. You can now recharge your health and sub-tanks by standing still.

Zero's Saber
You can acquire this with the following password: 1454 3535 6162 7162. On the second Dr. Doppler stage, play as only Mega Man until you reach the mini boss. Switch to Zero before fighting the mini boss, then continue to play as him until you defeat Vile. Zero will be destroyed during the fight, and will give his saber to Mega Man.