fixed R2 detection for charged shots
also enabled R1 as a button for charged shots
lmproved V-sync management to reduce overheating
lmproved V-sync management to reduce tearing problems
fixed problems with collision detections in the burst level
fixed water clipping in the scale level
minor bugfixes and polish
R1也可作为射击,修复垂直同步造成的游戏机过热,降低画面撕裂,物体碰撞错误,水面效果以及小bug修复