Updated to v1.2

Version 1.2 Released

• 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