The Power Strike series is a video game series of vertically scrolling shooters, produced by Compile

Compile (software company)

Compile Co., Ltd. was a Japanese video game company established on April 7, 1982, under the name Programmers-3. Founded by Masamitsu Niitani , they were famed for developing shooters and puzzle games such as Aleste and Puyo Puyo.Compile filed for bankruptcy and disbanded in 2003, but the franchise...

, for the Sega Master System

Sega Master System

The is a third-generation video game console that was manufactured and released by Sega in 1985 in Japan , 1986 in North America and 1987 in Europe....

 and Sega Game Gear

Sega Game Gear

The was Sega's first handheld game console. It was the third commercially available color handheld console, after the Atari Lynx and the TurboExpress....

. Except for one title, all of the games are actually localized Aleste games.

Power Strike

The first game was originally released in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 under the name Aleste

Aleste

is the first game in the Aleste series of shoot 'em up video games. Developed by the Japanese developer Compile and released in 1988, it has been seen on the MSX and Sega Master System....

. The original, Japanese version contains an extra level and an anime styled storyline that lacks in the original release. A follow-up of the game, Aleste 2

Aleste 2

Aleste 2 is a scrolling shooter video game for the MSX 2. It is a sequel to Aleste and was released by Compile in 1989, exclusively in Japan...

, was released as well. This game is entirely different from Power Strike II

Power Strike II (Master System)

This was the only original Power Strike game (it isn't a worldwide version of any existing Compile game nor was released in Japan). Unlike the other Power Strike game, it takes place in the 1930s, where the main characters tries to capture aerial pirates. While it plays the same as it predecessor (or any other Aleste game), it also features a charged attack by holding the fire button.

Power Strike II (Game Gear)

This game is originally released in Japan under the name of GG Aleste II: Lance Bird. It is a different game from its console counterpart.