The double-ship upgrade in single-player mode now fires down.
The secondary ship can now actually be hit by enemies and pick up power ups.
Added a menu option to turn game pad rumble on and off.
Decreased sound of opening menu explosion.
Increased Main Menu BGM volume.
Turned down frequency and intensity of rumble and screen shake.
Adjusted the color of the red enemy's secondary explosion.
Made enemies continue to respawn for longer in Level 6 ("Shipwreck").
Adjusted enemy positioning to avoid hiding it behind the UI in levels 3, 8, 9, and 24.
Fixed a bug with UI misaligning on some screen resolutions.
Fixed a bug where super weapon emblems weren't animating.
Fixed a bug where the mouse could still be used to click on things despite being turned off. There is no longer any mouse input while the game is running.
Fixed a bug where enemy movement speed would be unusually fast on certain graphics settings.