I feel I have a disease to put 4 stars on every Contra game, even to the original one, but that's how I feel of these games: plays absolutely awesomely and give the best on co-op but they can be challenging with some frustrations to time to time.

This is one of the mandatory games that everyone will say to play for anyone possessing a NES (alongside many other obvious: Megaman, Castlevania, FF I and III, Mario, Zelda etc.). And they're right, the game aged absolutely well.