- Free Birthday Cake
Change the system date to the day of your birthday, then go to Area C-1 and talk to Sherry to get a free Birthday Cake that restores eight points of health. Sherry is in one of the buildings that has a dark door.

- Sub-Tank location in Area A-2
Keep dashing until you find a big tree with two trunks. Jump on the trunk to the other trunk, then use Miometals Hx to dash up to a trunk. Dash up again, then run until you fall. Quickly dash lift. You will then hit against a wall. You will have to land on a cliff. Run to the wall then dash up and you will find a Sub-Tank.

- Model OX
After completing the Area-M mission, save and do not leave the area after sending your mission report. Instead go to the other side of Transerver where it reads Area-N. Go to the second floor of the stage and keep going until you see re-appearing metal floor steps. Proceed further until you see a floor of spikes. More of the metal floor steps are there, but it is faster with Model HX. After that there is a door. There you will fight Omega Zero. ZX and at least two or three Sub-Tanks are needed to defeat Omega Zero. After he is defeated, go back to where you begined to get to Area-N. Go to the third floor until you see two doors that require Megaman Zero 3 or Megaman Zero 4 in the cartridge slot. Beyond those two doors is a room with a mysterious floating rock. Get it, then get out of the area. The model can only be used after completing the game and playing your cleared saved game file. When doing this, talk to Flueve and give him the mysterious rock. He will confirm it is a BioMetal. You are now in possession of BioMetal OX.

- Mega Man Zero 4 Bosses
Have the Game Boy Advance game Megaman Zero 4 in the cartridge slot. Bosses from that game will now appear during the game.

- Easy lives
Notice: This trick requires the green keycard. Go to the teleporter that is found before the C-1 level. Then, enter the level and find the green door. Enter it, then while in human form go under the gap to get the three items on the right, which include an extra life. Return to the teleporter, then enter the level again and repeat the process as many times as desired.

- Boss toys
Overcome a Boss without hitting their Biometal areas to get a Level 4 victory and unlock a toy version of that Boss in the back of Prarie's room.

Leganchor	Overcome Leganchor while avoiding his head.
Hivolt	Overcome Hivolt while avoiding his wings.
Fistleo	Overcome Fistleo while avoiding his head.
Hurricaune	Overcome Hurricaunce while avoiding her neck.
Flammole	Overcome Flammole while avoiding his arms.
Protectos	Overcome Protectos while avoiding his chest.
Lurerre	Overcome Luererre while avoiding her head.
Purprill	Overcome Purprill while avoiding his arms.

- Completion bonuses
Successfully complete the game on the Normal difficulty setting to unlock the Hard difficulty setting. Successfully complete and save the game with both Vent and Aile on the Normal or Hard difficulty setting. Begin a new game with the cleared game file and you can keep Model X after getting Model ZX.

- Mini-games
Successfully complete the indicated task to unlock the corresponding mini-game. To play the mini-games, go to the arcade next to the transerver in Area C-2, then push Up when next to a game.

Crusher-F	Overcome any two Bosses.
Mega Crusher-F	Clear the Crusher-F mini-game high score (100 points).

- Mega Man Zero 3 Bosses
Have the Game Boy Advance game Megaman Zero 3 in the cartridge slot. Bosses from that game will now appear during the game.

- Move car
Go to Area C-1 and look for a car. You must use Miometal Hx to move the car. Use your special to move it. You will then find a Life Energy +8, Miometal Energy +8, and two E Crystals +16.