Special Menu, Viewpoint Control etc..: 

To get a Special Menu in the game Brahma Force, you must finish the entire game within two hours. Keep the memory card, which has the Clear Data, inside the slot. While the "Press Start Button" at the Title Screen is flashing, press Start. The system will check for save data. A new option named "Special" will appear underneath the other options. Highlight and enter this special mode. You will now have access to a Stage Select, Stream View Mode (see all the full-motion video from the game), XA Test Mode (test out all of the voice acting from the game), and the SE Test Mode (test all the sound effects in the game). To turn on Map Viewpoint Control, begin your game and press Start to get the Command Screen. Highlight "Map" and enter this mode. Press Select to stop the map rotation. Now you can use the control pad and the top L and P buttons to move yourself freely all around the map. To return to the Title Screen, pressL1+R1+L2+R2+Select at the same time.

Easy Game:-  To make this game a little easier, put in this trick. Go to the title screen with the "Press Start Button" flashing. At this screen, hold Up-Right+X+Square. While holding these, press Start. You'll hear a slightly different selection sound than normal. Begin your game and you will notice some new aspects about the level. The enemies will be easier to kill, you have more time to complete the level, and the enemies will leave more powerful items behind. This will make the game less challenging, but it will give you the advantage to win it with a little more ease.

Bonus options - Use a memory card and complete the game in less than 1:30:00. Press Start after the title screen appears again. Choose the [Special] selection on the screen to access level selection, view FMV sequences, enter sound test mode, and other options.

End game bonus - After completing the game, regardless of time required, hidden areas will be visible on the map. Additionally, you will retain weapons and ammunitions. However, SAPUs will be reduced by half.

Hard mode - At the title screen, press L1, R1, L2, R2, Square, X, Triangle, Circle.

Easy mode - At the "Press Start Button" screen, hold Up/Right + X + Square, then press Start. Now enemy attack and defense power will be reduced by half, and more time will be available to complete each level.

Flight mode - Beat the game in less than 1:30:00. Then, hold L2 + R2 and press X on controller two. Now while playing a game, press R2 on controller one to climb, and L2 to dive.

Control map movement - Pause the game and enter the "Map" option. Then, press Select to stop the map movement. Now press L1, L2, R1, R2, and the D-pad to move around the map.

Level skip - Load a saved game and repeatedly tap Start until the save game message appears. Then, choose "No" to continue a game at the next level.

Extra options - Use a memory card and beat the game in less than 1:30:00. Then after the title screen appears again, press Start. Now choose the "Special" selection on the screen to access level selection, view FMV sequences, enter sound test mode, and other options.

Reset game - While playing a game, press L1 + L2 + R1 + R2 + Select. 

GameShark Codes:

Never Overheat 800e0a6e0000
Infinite Durability 800e0c6403e8 800e0c6603e8
Infinite Bullets 800e0c7403e8
Infinite Missiles 800e0c7803e8
Infinite Mortar Shells 800e0c7a03e8
Hasler 1000 and 3000 Rifles 800e0c98ffff
Hensolt and Triple Barrel 800e0c9affff
Rapid Fire Rifle 800e0c9cffff
Polar Ray and Synwave 800e0ca0ffff
Prokian and Hadron Lasers 800e0c9effff
Hydra Laser 800e0ca2ffff
MIV Mortar 800e0ca8ffff
Infinite Laser Energy 800e0d2a06b0
Breaker Mortar 800e0ca6ffff
Dual Buster and Mobs 800e0ca4ffff
Infinite Bombs 800e0c7c03e8