Need help remembering name

[Rincar]

There was an arcade game where you had a ship and it was a top scrolling game. There were diffrent upgrades for your weapons and the faster you pumped the shoot button the better the weapon would be. For instance the purple laser would eventualy get to be this massive ship seeking death laser that would lock onto anything enamy and I am sure was about half inch? thick. But if anyone knows the name of that game or ones simaler to it and could tell me I would be greatly pleased.

[hanzmoleman007]

The first one that comes to my mind is DonPachi.

[othello]

well it sounds like a game called space invaders but im not sure...

[Genome]

Zero wing?