Mega Turrican is a run and gun video game, developed by Factor 5 in 1993 and marketed by Data East in 1994.

Despite not being the original, the Amiga version was the one that was first commercially released in 1993, published by Rainbow Arts in Germany and Renegade in the rest of Europe.

The Mega Drive version of the game was re-released on the Wii's Virtual Console service in Europe and Australia on March 22, 2008 and on April 14, 2008 in North America.

Bren McGuire is on a United Planets Freedom Forces mission when suddenly he sees his worst nightmares come true again.

Nobody expected a return of The Machine, but now, after many people enjoyed freedom and peace in the galaxy, the dark forces under his command are starting to assemble again.

Once again, Bren McGuire, now the leader of the Freedom Forces, is the only hope in a crucial mission to definitely destroy the grasp of evil represented by The Machine.

However, around this time, the Amiga market was already in decline and together with Rainbow Arts, it was decided to develop the game for the Sega Mega Drive instead.

Development of what was already known as Mega Turrican was finished in spring 1993, but Factor 5 was still lacking a publishing agreement for the title at this point, since Rainbow Arts did not perform direct operations on the console business.

This port for the Amiga, rebranded as Turrican 3 (replacing the Roman numerals that the previous Factor 5 project had assigned), was released in Europe in Autumn 1993 by Rainbow Arts and Renegade Software, even before the original version for the Mega Drive/Genesis could find a publishing company for any region.