Gradius (c) 1986 Konami.

>>> TECHNICAL DETAILS
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Nintendo PlayChoice-10 hardware
Game ID : GR
Main CPU : Z80 (@ 4 Mhz), N2A03 (@ 1.789772 Mhz)
Sound Chips : N2A03 (@ 1.789772 Mhz), DAC (@ 1.789772 Mhz)
Screen orientation : Horizontal
Video resolution : 256 x 240 pixels
Screen refresh : 60.00 Hz
Palette colors : 320
Players : 2
Control : 8-way joystick
Buttons : 2

>>> TRIVIA
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Kazuhisa Hashimoto, who programmed this Nintendo Famicom port, found the original arcade game too hard, so he inserted the so-called Konami code (see Tips & Tricks section).

>>> TRICKS AND TIPS
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* Continue : at the Game Over screen press Down, Up, B, A, B, A, B, A, Start. Note : This can only be used once per game.
* Classic Konami code : press Start during the game, then press Up(x2), Down(x2), Left, Right, Left, Right, B, A, Start. This code equips you with two Missiles, two options and a force field barrier.
* Secret message : during the title screen hold B+A, then reset the machine and return in the game (always with B+A) to get the following message : KONAMI ONE, GRADIUS ONE.
* Level skip : destroy the ship that appears at the end of each level within five seconds to skip the next level.

>>> DESIGNERS / PROGRAMMERS / STAFF
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Programmed by : Kazuhisa Hashimoto
Music by : Miki Higashino

>>> GAME PORTS TO OTHER SYSTEMS
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* Consoles :
Nintendo Wii (2007, 'Virtual Console')

>>> OTHER GAME RESOURCES
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Game's rom.