Novinky 1

Updated to Version 1.2
- stage 4 (2 new enemies and 1 new boss, originally stage 8 in arcade) NOTE: stage 4 boss cannot be damaged with normal bullets, you need to use the beam or a force weapon
- soundtrack available on https://soundcloud.com/youry-kiki/sets/r-type-pico8
- swapped fire buttons
- increased special weapon damage
- added different explosion for missiles
- fix autofire too fast with force weapons
- fix autofire firing force while holding button down
- fixed circle beam/missiles gfx
- fixed missiles explosion drawn twice
- missiles only seeks forward as in arcade
- misc. fixes/improvements to better match arcade version