Bionic Commando (NES)/Final Area

From the start, head right and grapple over the spikes. Speak with Hal and he'll give you a Bazooka to take down Master-D's chopper (he also reminds you to aim at the cockpit as you jump, even though you can't jump). Make your way to the right until you reach the end. Hal forgot to tell you that you're only going to have one chance to destroy the helicopter, because when you land on the ground the chopper's machine gun will kill you in one hit. As such, you're going to have to fire a well timed shot into the cockpit as you're falling. Chances are you won't get it the first time, so hopefully you have some extra lives. If you manage to hit the chopper's window, a small cutscene takes place where the Bionic Commando calls Master-D a monster and then Master-D explodes along with the chopper.

Because you blew up a giant helicopter inside a base, the entire base is going to blow up. You have 60 seconds to escape. It shouldn't be too difficult to grapple your way up quickly, but you'll run into one final challenge half way to victory. Another giant mechanical grapple soldier stands in your way. Grapple up the left side of the passage and to the left of the soldier, then when he activates, grapple up onto the platform, and then fall to the right and grapple to the right platform. If he knocks you to the side, you should be in a position to more easily grapple the platform. If he doesn't kill you, making the 60 second time limit should be a piece of cake.

After escaping, a cutscene takes place where the commander asks where Joe is, then runs back into the base. A soldier on the communication line says they can't wait any longer. A different soldier asks him to wait, then he sees something. The base explodes, and then out of the fire a helicopter makes its way to safety. Hanging the helicopter's tow line is the commander and Joe. The credit sequence begins.