Here is the full list of all 16 Light-It Up achievements.
Play for the first time. This one's a freebie!
Finish 20 levels with 3 stars to fulfill his high expectations
Light up 15 exploding blocks to show your true power level
Light up 25 yellow blocks to show your inner light
Light up 25 red blocks to fire it up
Finish Level 10
Finish Level 14
Finish Level 25
Finish Level 50
Finish Level 75
Finish Level 100
Finish Level 125
Finish Level 150
Die on spikes with honor 25 time to recruit the Ninja
Finish 75 levels with 3 stars
Land on 666 blocks of all color to unleash The Unicorn