Games like gradius

Gradius is a side-scrolling shooter video game developed and published by Konami. The first game in the Gradius series, it was originally released as a coin-operated arcade game in 1985. The player maneuvers a spacecraft known as the Vic Viper that must defend itself from the various alien enemies. The game uses a power-up system called the "power meter", based upon collecting capsules to purchase additional weapons.

The arcade version of Gradius was initially released internationally outside Japan under the title of Nemesis, but subsequent home releases have since used the original title. During development, it had the working title Scramble 2, as it was originally intended to be a follow-up to Konami's earlier shooter Scramble (1981). Home versions were released for various platforms, such as the Famicom/NES, the MSX home computer, and the PC Engine. It was a major success in 1986, becoming the year's highest-grossing arcade game in London and one of Japan's top five table arcade games, while the Famicom port sold over a million copies in Japan that year.