You're Halfway There - Complete half of either track list.
There and Back - Have a particle go through a portal twice.
Bouncy, Bouncy - Bounce a particle off the Deflect control 4 times.
It's a Mess - Win by manually spraying particles into a container.
Colors of the Wind - Have a single particle change its color 3 times.
Lil' Big Steps - Beat the first act of any track list.
Event Horizon - Beat a black hole level without ever losing a particle to a black hole.
Maestro - Complete the Modern track list.
Conductor - Complete the Classic track list.