Update #42

[list] [*] Sometimes more than one BGM is playing [*] Pause looping sound effects when entering pause UI [*] When learning passive skills, set 'Yes' as default option in dialog [*] Player won't take periodic damage when frozen [*] Bullets don't damage their shooter [*] Passive skill 'Offensive Tactics' should reduce player's max HP [*] When choosing new save file, clear player's passive skills [*] Poisoned puddles will not trigger 'Quick Reflexes' or 'Wind of Recovery' [/list]