Contra: Hard Corps is a side-scrolling run and gun-style shoot-'em-up video game released by Konami for the Sega Genesis in North America and South Korea in 1994

Just like all other Contra games, this one is extreme! Extremely difficult that is! Of course, that's probably part of the appeal for 'Hard Corps' fans (pun intended). You have a choice of 4 playable characters, each with their own strengths and weakness, as well as their own arsenal of weapons / power ups