i beat it, it is actually easy until you get to the final boss, which is REALLY hard. But there is an easy way to kill him.
1. SHOOT HIM ALOT
2. wait for the lights around him to light up, this will be an "X" beam, so dogde straight to the left or right to keep out of the way
3. RIGHT after that there is a "+" attacik, so dart right up or down after to survive
4. Repeat and just shoot alot, and youll beat him
**** That two-laser attack can kill you in one hit so make sure you dogde it*****