Editing Gradius (video game) (section)

===Arcade===
''Gradius'' was first released in [[Japan]] for Konami's [[Bubble System]], an arcade board which allowed operators to change the software through the use of proprietary "Bubble Software" cartridge media based on magnetic [[bubble memory]]. The game was distributed as a standard [[printed circuit board]] in North America and Europe under the title of ''Nemesis''.<ref name=cashbox>{{cite magazine|url=https://archive.org/details/cashbox50unse_23/page/n51?q=nemesis|title=Year in Review|magazine=Cashbox|date=January 17, 1987}}</ref> The North American version of ''Nemesis'' features a considerably increased difficulty compared to the Japanese and European version. To balance this, the game spawns a fleet of orange enemies when the player loses a life to provide as many power-up capsules as possible to recover as many upgrades as possible. Also the North American version presents a continue feature (but only for three times). The title screen was also updated, showing an in-game reproduction of the promotional artwork behind the logo.