Arrow Flash is a shoot-'em-up game developed by Sega as a Sega Mega Drive exclusive title in 1990, with Renovation publishing it in the US. The game is very common and has been re-released numerous times through various compilations. It was one of the first in it's genre for the Sega Mega Drive.
The player can transform to either a ship or as a mech by pressing A. B fires a regular shot in both forms. As a ship, C shoots a barrage of large laser bullets in all directions; as a mech, C thrusts the player forward, making the player invincible for several seconds. This is the so called Arrow Flash. Depending on the options settings, these C Button attacks must be collected or charged up.
In mech shape, movement is faster and options (as in Gradius style options) stay in fixed position above and below the ship. In ship shape, the options follow the ship the same way they do in Konami's Gradius series. Options are indestructable, can fire shots and absorb small enemy bullets. The ships firing rate is rather high and the game is fast paced. Dying once removes all collected equipment, but the player can resume gameplay where they died.