Version 1.2.6

added a simple HUD indicator to show the trophy state of the current stage
fixed not being able to achieve X rank in stage 3-5 on easy difficulty
fixed one of the tasks being unsolvable in stage 5-4 if playing too fast (especially on easy difficulty)
improved and relaxed the summary medal calculations in classic mode to make it easier and fairer to achieve an appropriate rank
improved pacing in co-op mode by decreasing enemy and boss health by around 10%
improved visual quality and performance when playing with DirectX 9