A slight hiatus, but have added a few things now.
A state machine and 3 different states (normal, rapid fire, cannon).
Toggleable crosshairs, controlled with right joystick (to aim the cannon with in cannon state, and maybe for heatseaking missiles in normal state. Could also be used for some turret stage if any get included)
An enemy (auto bomb, seeking out the player when triggered)
Simple healthbar
Will add:
Enemy ships
Anti-aircraft turrets
UI with improved healthbar, state info
New ship model and state transition animations
Add small spread to rapid fire