It may be very hard, but it is very addictive.
I am a big fan of contra and enjoy all of the Contra games, and Hard Corps, no matter how hard it is, it still is my personal favorite.
Fun boss fights, big enemy's you will occasionally come across, such as the giant robotic spider, etc.
The game allows you to select a character. My personal favorite character is "Fang". I seem to be great with him, but with the rest I fail.
The game will require a lot of crouching, aiming up and looking quickly left and right and avoiding a ton of bullets.
This is one of the greatest games of all time, also the first time Contra made a success on a system OTHER than the Nintendo systems.
A lot of Contra fans consider this to be the most difficult Contra game in the series. It was pretty hard, but not the most difficult.
If you're a classic gamer, this is a game you REALLY got to get your hands on. For me, as I am a classic game, absolutely love it.
I highly recommend this game. Contra forever!