12 Video Game Bosses NOBODY Was Ready For

The Mega Man series has some of the most agonising bosses in gaming history. Dr. Wily. Sigma. Yellow Devil. However, none of these villains can compete with Duo, the final boss of Mega Man Battle Network 4.

The problem with facing this monstrous program is he's only vulnerable while standing still. As an added complication, he attacks every time he's stationary. This means Mega Man can only hit Duo while the galactic android is unleashing a barrage of lasers and bombs. And since Duo remains motionless for only a second, the window of opportunity is brief.

But it gets worse. If Mega misses (which happens a lot,) he can't use another Battle Chip attack until the next turn. Although the Blue Bomber can still use his MegaBuster, it's laughably ineffective against Duo. So, if Mega misses, he's a sitting duck for the next 10-20 seconds.

But it gets worse... again. You see, our robotic hero has a finite amount of Battle Chips per fight. Once he runs out (which is very likely during this scrap,) Mega will have nothing to defend himself, save for his crappy MegaBuster. When this happens, the chances of triumphing over Duo is virtually non-existent.