#39 is impossible without a laser mouse. Track pads are inaccurate and slow and track balls can get stuck... needless to say I am never getting the hard achievement.
Talk about weird. I tried getting the last badge, but failed really bad. I never hit a red note, I missed only 1-4 yellow notes and had a multiplier of like 54 or something, I collected 70-80% of the notes but I only had 1.7 million points in the end.
 "Robot Wants Ice Cream"){kind=icon}
 "Epic Battle Fantasy 3"){kind=icon}
 "Red Remover"){kind=icon}
 "Music Catch 2"){kind=icon}