Changelog since last demo day:
- Added weapon test mode, the button is right next to "start next level"
- Added tons of new sounds
- Added indicators for some enemies, signifying when then are ready to fire/spawn children
- Added a new enemy type
- Added a new modifier
- Player ship's outline and trail now change color based on hp
- Changed how mine layers work
- Enemy spawn positions now show what kind of enemy will spawn there
- Rebalances