Gradius

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Gradius is a scrolling-shooter set in space and pre-cursor to Life Force. However, unlike Life Force, only one player may play at a time, and dying causes to to return to the last check point.

Easy Cheats

Icon Addr Val Cmp Description
Icon-Lives-Infinite.png 0020 09 - P1 Infinite Lives
Icon-Lives-Infinite.png 0021 09 - P2 Infinite Lives
Icon-Powerup.png 0045 01 - Have Both Options
Icon-Armor.png 0046 05 - Have Force Field Barrier
Icon-Weapon.png 0044 01 - Have Laser
Icon-Weapon.png 0044 02 - Have Double
Icon-Weapon.png 0041 01 - Have Missiles
Icon-Speed.png 0040 07 - Fast Speed
How do I use these?

North America

Gradius.png

Memory Addresses

0020 - P1 Lives (00-63)
0021 - P2 Lives

0040 - Speed (No limit, but anything above 0F doesn't seem to help)
0041 - Missiles (00-01)
0042 - Capsules (00-06)
0043 - 
0044 - Weapon (00 - Regular, 01 - Laser, 02 - Double) 03 shoots Gradius ships!
0045 - Options (00-02) Additional options have interesting effect.
0046 - Force Field Barrier Hit Points (00-05)
0047 - Capsule Collection Tally

0200-02FF - PPU Memory

07E0 - Hi Score: xxxx990
07E1 - Hi Score: xx99xx0
07E2 - Hi Score: 99xxxx0

07E4 - P1 Score: xxxx990
07E5 - P1 Score: xx99xx0
07E6 - P1 Score: 99xxxx0

07E8 - P2 Score: xxxx990
07E9 - P2 Score: xx99xx0
07EA - P2 Score: 99xxxx0

Code

Text

Japan

In Japan, the game is called Nemesis.