Major Updates Today:
2 Player Co-op Added
Note I have not added Achievements and Steam Leaderboards for CO-OP mode yet. These should only work in 1 Player mode.
Boss waves: freedom of movement
You are no longer pinned to the lower third of the screen during boss fights. The ceiling now tracks the boss, so you can climb to meet it.
Homing missiles on boss screens are worth points
Shooting down a homing missile now scores 50, 100 or 200 points depending on how much damage it had already taken. The value pops on screen.