Here is the full list of all 22 Space Warp achievements.
Complete 1st world.
Beat personal best record.
Complete 1st level.
Complete 8th world.
Complete 7th world.
Complete 6th world.
Complete 5th world.
Complete 4th world.
Complete 3rd world.
Complete 2nd world.
Complete level after almost dying in radiation zone.
Fall into a black hole.
Failed 500 times.
Failed 250 times.
Failed 100 times.
Failed 50 times.
Failed 10 times.
Beat personal best record 5 times.
Beat personal best record 10 times.
Beat personal best record 50 times.
Watch complete replay.
Compete with at least 5 friends.