I don't think there's any copy-code website like that.
For your super-surfing Minigun, just decrease FireInterval to 1. Minigun has a built-in programming so that its bullets push back its user very slightly even though it has Plain Bullet bulletstyle.
For your D'Eagles jetpack, to push yourself in the direction of the cursor, use Shotgun Pellets (BulletStyle=3) and set Speed to any super-small #, in the negatives. The smaller the # (e.g. -700 < -100), the farther you'll fly forward. It has nothing to do with Damage.