At the main menu, highlight the "Options" selection, then press Down to highlight an invisible option. Press X to display the debug menu, with options for stage selection, sound test, Ed and Al's experience, event flags, special attack, and fever/fighting frenzy modes. Note: Hold L1 + R1 + L2 + R2 + Start + Select to reset the game if your selected options cause you to become stuck.
Successfully complete the game and save when prompted. Load the saved game file again to begin with all previously obtained items and accessories. Look in some chests to unlock gallery movies and pictures.
Transmute a table and chairs set into a rubber hammer. It only does one point of damage per hit, but is very fast, allowing you to get over 100 hits in a short matter of time. This will result in a large amount of bonus experience.
When you get the "vacuum" and it finishes sucking, use alchemy to get an item such as Elixir.
When fighting the Ater, Earth, and Sky Chimeras, the Water Chimera will go counterclockwise in the pools.
Hold Circle until your alchemy is full. Then, release the stone spikes you have charged in front of the crap's face and it will flip over to its back. Once on its back, your attacks are more effective.
Transmute the two tanks from the light poles and keep shooting at Armstrong until he dies. Note: Switch from side to side. When Armstrong dies, pick up the item that he drops called "Demon Fist". Then, use whatever ammunition you have remaining to damage Mustang. Next, transmute a Lighting Lance and have Al tackle Mustang until he goes into the air. Then, start attacking him. When he says "Stand back", run away. Repeat this process until he dies. Note: Consume Magic-Caps as soon as the battle starts and give one to Al.
When the battle begins, collect all of the Reload Treasures, then make sure that the Sky Chimera is as close to the cannon as possible. Shoot the Chimera with all four shots then reload. If the Chimera is down, keep shooting and reloading. Repeat this until the Chimera is down.
Stand still and look closely at Ed's right arm. You can see that his hand is the same color as his skin. Instead of his hand being the sword (your weapon when you are unequipped), it is coming out of his sleeve.
When you are fighting the final Bosses (Major Armstrong and Colonel Mustang), you can hear the Cowboy Bebop ending theme music.
Press Start on controller two to display the cheat menu.