This is a evolving list of features planned for the game.

COOP REVAMP - New Lobby screen for up to four players. 
Players will be able to choose their ship from a pool of unlockable ships

SHIP UNLOCKS - There will be a number of ships to unlock in the game with their own special abilities.
Each ship will be chosen at random once the player obtains 4 special crafiting parts from playing the game.
Ships unlock for all players.

POWERUP IDEAS - Here is a list of the following power up ideas:
Shield
Tracking missile
Friendly Ally
Beam
Circle of Death
Spread shot
Double Shot
Reset Sun position(Rare)

BOSS BATTLES - Every certain amount of levels players will have a random boss enoucnter.
This will stop all normal enemies from spawning. Bosses will have typical patterns to avoid and speical attacks.

PERMANANT POWERUPS - Every could of levels the player will be granted with a random powerup.
Powerup will change thw way the ship behaves.