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3 Dual Screen Arcade CBM C64 CPC 464-6128 Dual Screen Famicom Game Boy Game Boy Advance i-mode LCD Game MSX PlayChoice 10 PC88-5INCH PC Engine PlayStation PlayStation 2 PlayStation 3 PlayStation 4 PlayStation Portable PlayStation Vita Super Famicom Saturn Smart TV VS System Wii Wii U Windows X1 X68000-X68030 Xbox 360 ZX Spectrum

MSX

MSX (MSX) - MSX

Gradius

Hidden Command

Press F1 to pause the game, type the password, press ENTER and F1 to resume the game.

Only once per game

Full Power Up

  • HYPER

Speed Up

  • SPEED

Select Missile Weapon

  • MISSILE

Select Double Weapon

  • DOUBLE

Select Laser Weapon

  • LASER

Select Option Weapon

  • OPTION

Select Shield Weapon

  • SHIELD
Only once per game

Stage 1 Full Power Up

  • MOMOKO

Stage 2 Full Power Up

  • CHIE

Stage 3 Full Power Up

  • AKEMI

Stage 4 Full Power Up

  • SYUKO

Stage 5 Full Power Up

  • CHIAKI

Stage 6 Full Power Up

  • NORIKO

Stage 7 Full Power Up

  • SATOE

Stage 8 Full Power Up

  • YASUKO

Bonus Stage 1 Full Power Up

  • KINUYO

Bonus Stage 2 Full Power Up

  • HISAE

Bonus Stage 3 Full Power Up

  • MIYUKI

Bonus Stage 4 Full Power Up

  • YOHKO
Something Extra

Suicide bombing 1

  • AHO

Suicide bombing 2

  • BAKA

Speed down

  • DOWN

Hiding free character

  • If you insert both RC 742: Gradius and RC 740: TwinBee
    Your ship will be TwinBee and power capsules will be bells.

Extra Stage

Stage 1
  • Even though there is no bonus stage on Stage 1, you do need to fly through the split mountain, then both split mountains on Stage 4 to get the Stage 4 hidden stage.

Stage 1

Stage 2
  • The first bonus stage is accessed by flying backwards into the section indicated.

Stage 2

Stage 3
  • The second bonus stage is accessed by flying between the 2nd set of Moai facing away from each other.

Stage 3

Stage 4
  • The third bonus stage is accessed by flying through the split mountain on Stage 1 then both split mountains on Stage 4.

Stage 4

Stage 5
  • The final bonus stage is accessed by flying into this spot next to the boss.

Stage 5

 

Thanks to GOGS

Salamander

Game Ending

  • When you complete the game you will only see the bad ending.

But if you insert the RC751 GRADIUS 2 cartridge into SLOT2

  • You get an extra stage so you can defeat Venom and finish the game for the good ending.

Gradius 2

If you insert both RC 751: Gradius 2 and one of these you get different results:-

Hidden command RC 746 Q-Bert is inserted in SLOT2, then press F1 to pause the game, type the password, press ENTER and F1 to resume the game.

Full Power Up

  • LARS18TH

Makes you invulnerable for 45 seconds (only to bullets not the ground)

  • METALION

Advance to the next stage.

  • NEMESIS

Hiding free characters

RC 749: The Maze of Galious is inserted into SLOT2 then:-

  • If you die, you can get your weapons back (back up).
  • The main ship becomes Popolon

RC 743: Penguin Adventure is inserted into SLOT2 then:-

  • Your ship is a Penguin, and energy capsules are fishes.

RC751: GRADIUS 2 is inserted into SLOT2 then:-

  • Music changes
  • Rotary drill 99: The Sixth Planet (Life Planet) extra stage rushes into a rotary drill.

Extra stage

The Third Planet (Ancient Planet)

01

The Sixth Planet (Life Planet)

02

Sixth planet (Life Planet) extra, it is in the middle of the stage

03

Parodius ~Tako wa chikyuu o sukuu~

At the end of stage 2 you have to play Rock Paper Scissors. If you lose, you have to play the stage again; if it is a draw you have to fight.

Bonus Stages

There are three known bonus stages.

Stage 1

When you have defeated the moai, fly under its neck.

Stage 4

At a certain point, you have to fly up out of the screen or you'll hit a dead end. Fly into the dead end instead, and go to the far upper right corner.

Stage 5

Fly under all the jumping gravestones.

Passwords

Press F1 to pause the game, type the password, press ENTER and F1 to resume the game.

All power-ups. The password literally means "everything".

  • ZENBU

Always have Red Bell (Vector Laser).

  • KONAMI

Always have Dark Green Bell (Up Laser).

  • BUTAKO

Always have Blue Bell (Rotary Drill).

  • TAKO18TH

Always have White Bell (wrap around horizontally).

  • PARO

Increases the Shield durability. (note, this does not work with the ZENBU password)

  • KATAI

GOFER no yabou Episode II

Hidden Commands

Press F1 to pause the game, type the password, press ENTER and F1 to resume the game.

Barrier strengthening

  • EXPAND

Special weapon search

  • FIND

Stage (degree of hardness) down

  • GOOD

Stage (degree of hardness) rise

  • HARD