Here is the full list of all 14 Tales From Space: Mutant Blobs Attack achievements.
Eat the solar system
Eat the magnetic balls at the end of end of Chapter 5
Complete all of the Mini-Game levels
Boot yourself over the spikes at the end of Chapter 4
Absorb 1500 objects
Take a ride on the space elevator at the end of Chapter 3
Board the rocket ship at the end of Chapter 2
Earn a silver medallion or better in five levels
Eat the valedictorian at the end of Chapter 1
Eat the final cork in Level 1
Look up the top score on any leaderboard
Eat all of the escape pods in the final level
Collect all Blob Friends in the game
Earn a gold medallion in every level