Different bosses, different patterns, each and every time you play!
In Bit Boss, you have to dodge bullets and laser beams sent out form the Boss for a set period of time. Once the time is up; the length of time you have to survive gets bigger, the bosses get harder, and you move on to the next boss.
The thing is, each boss you see in Bit Boss is randomly generated. You will never see the same boss twice. Or if you do, count yourself very lucky. The bosses are made up of a variety of different parts, ensuring the attack patterns are completely different for every boss. Later bosses add mines and power ups.
The game has infinite replay value, is simple and easy to pick up, and is damn addictive.