Parodius
Platform: MSX
Region: Japan
Media: Cartridge
Controller: Keyboard
Genre: Shoot 'em Up > Horizontal 
Gametype: Translated
Release Year: 1988
Developer: Konami
Publisher: Konami
Players: 1
Translated by: A&L Software
Version: v1.0
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This is mostly the parody of Gradius (Nemesis on some systems), with some flavor from other shoot-em-ups, like Twinbee. The series is available on numerous platforms.

The game is a right-to-left scrolling shoot-em-up. You can choose from 4 different flying creatures, with different weapons. You must finish 7 stages, each having a boss at the end. You may start at either one, but must complete every level to advance to the final stage.
 
http://www.mobygames.com/game/msx/parodius