Contra

The legendary Contra series is back! Contra: Operation Galuga is a modern reimagining of the classic run-‘n’-gun action game from the ’80s, featuring modern graphics and sound. Encounter new stages, new play mechanics, an updated weapons system and explosive co-op combat for up to two players in Story Mode or four players in Arcade Mode.

Probotector is the European port of Contra (NES), which changes the main characters and enemies into robots. It was made based on the American version of the game, with the cutscenes changed accordingly.

This is the Family Computer (Famicom) port of Contra. Even if the American and the Japanese port look similar and share the same art style and engine, the Japanese version has added content, with more animations in the backgrounds, new cheat codes and, most importantly, story cutscenes explaining the plot of the game.