Parodius (Game Boy)

Parodius
Also known as: Parodius Da! (JP) Developer: Konami Publishers: Konami (JP), Palcom Software (EU) Platform: Game Boy Released in JP: April 5, 1991 Released in EU: 1992 This game has a hidden sound test. This game has regional differences.

An octopus saves the world.

Music Test

Press Up, Up, Down, Down, Left, Right, Left, Right, B, A at the publisher logo (Konami in the Japanese version, Palcom in the European one).

In Konami GB Collection, the Konami logos in all other games were removed, but the logo in Parodius was replaced by a fake "Now Loading" screen, presumably so there would still be a place to enter the code.

(Source: GameFAQs (Pentarou64))

All Weapons Cheat

Press Up, Up, Down, Down, Left, Right, Left, Right, B, A while paused in-game.

(Source: GameFAQs (BBabb))

Regional Differences

Japan	Europe

On the title screen, there is a difference in the gradient in the background between the two releases. Uniquely to the Game Boy version, the European title screen uses the Gradius-style logo of its MSX predecessor, rather than the logo found in other localised versions (which would also be used in the Konami GB Collection re-release).