Mega Man 3

Mega Man 3 (Rockman 3 in Japan) is a sequel to Mega Man 2 It was developed and published by Capcom for the NES. The game was originally released in Japan in 1990.

You can also play Mega Man 4

Original story:
It's robot rebellion, and nobody's safe! Least of all, Mega Man! This time the superpowerful cyborg takes on a horde of metal maniacs who've had it with being obedient! And they use every android-annihilator ever invented to make you believe it! Mega Man goes berserk, blasting through a galaxy of mining stations in search of energy crystals. But it takes more than guts to battle the phenomenal robot masters who control these worlds. It's a wrenching job, the worst - and the best - that Mega Man's faced so far!

Instructions

Enter - start (pause);    Arrows - move;    Z - jump;    DOWN + Z = slide;
X - attack;    Esc = exit fullscreen;