CHANGES
Skill Tree 'Core' has some new talents 
Galactica Levels have been implemented- allowing scaling replayability
Slipspace Mode has been implemented- allowing rapid gameplay
Armor has been implemented- higher Galactica Levels will reduce overall damage determined by armor

Smaller Changes:
Headhunter duration has been reduced (60s -> 30s)
Boss HUD now shows the amount of bosses on the map as a tally
Shades now spawn in groups determined by the Galactica Level scaling, and no longer scale in amount
Luna Coins have been multiplied by 10, to allow fluid scaling at higher levels

Keep in Mind:
Help menu has been drastically expanded, and will explain any questions
Shop has a button that will award the player 69,420 Luna Coins for testing purposes