You get this for beating level 7.
1) Go to the right. On this screen, click the right arrows again and move your mouse up to the planet at the top to make the black hole go away.
2) Do the same in this area, but now there are 2 planets to touch.
3) Do it once more, this time with the planets switched. Go right once more.
4) The next set of puzzles are spinning jigsaw puzzles. A segment is highlighted and you need to find the piece that fits at the top. If you get through all 3 without a mistake, you'll get the first coin of the level.
5) After the spinning puzzles, it's time to play space invaders. Click the red button in the back to shoot the spaceships above it.
6) When the invaders are dead, you'll get an achievement. Go right. You'll float off the ground.
7) In this segment, you just need to float to the right without touching the black holes. Click on the side opposite of the direction you want to go to push yourself in the desired direction.
8) After 5 of these screens you'll be back on solid ground. Go right.
9) On this screen there's a flag. Right behind it is the second coin. Go right again.
10) You'll be back at the firefly now. It will transform into a laser turret, and you'll automatically climb in.
11) Shoot the Earth first to get the last coin for the level. And then just shoot 20 ships to beat the high score and the level!