got all badges, Hard badges aren't that hard. Just get Radar and fixex motion and it's kinda easy. For the 100x in Gentle Song, just stay in the middle and whenever a Yellow or Purple note comes out, pick it up and go back to the middle. Once you have your 100x, just wait in the middle until the end of the song. As for 5,000,000 points in Letting Go, same pattern, except that you follow the radar line a bit away and zig-zagging a little. If Reds are blocking, you wait until they disappear and start back picking notes. I had 5,220,000 points at the end, althought I hit a red note 3 times near the end. i got 6 million on letting go
Gravity Tinkerer Badge (medium - 15 points)
You acquired this badge on Aug. 04, 2009.
Newtonian Master Badge (hard - 30 points)
You acquired this badge on Aug. 04, 2009.
Black Hole Escape Artist Badge (impossible - 60 points)
You acquired this badge on Aug. 04, 2009.
very easy,, not too long though,, won this on the 3rd age,, just kept spamming duellers and cannoneers, once they are closer to the enemy base use the special and u wipe them out