Hi there =]!
Do you remember your escalation options? there are some nasty combos.
Escalation currently works like a difficulty increase with a reward. Not really ment to always max. In the future it will have achievements for reaching a higher level per sector.
I will also reduce the respawn timer at max level, is a bit high.
For the music, tracks are called song1, song2, haha!
Some may change. I´ll see if there is a way to make a post with the tracks, and get your feedback.
Oh, and I should definetly implement a sector lost screen, which does not give the extra xp rewards, but shows you the stats similar to the victory screen.
Thank you so much!