- add game tab to settings menu
- new enemy health option (100% - 500%) for adjusting difficulty and combo length on enemies
- update boss enemy encounter
- 3 new attack behaviors
- boss healthbar
- updated idle pose
- update explosive fist weapon falling-axe-kick-release animation
- adjust shards fire cost from 2 meter units to 5 meter units
- add confirm prompt when quitting from main menu during a run
- update build to SDL 2.0.16
