Here is the full list of all 24 Dispersio achievements.
Finish the game
Go through the space station
Escape from mountain
Escape from arctic iceberg
Escape from sewers
Become a Captain Viridian
Escape from catacombs
Escape from caves
Escape from egyptian pyramid
Escape from factory
Find the crystal
Find the crystal in hard mode
Escape from factory in hard mode
Escape from egyptian pyramid in hard mode
Escape from caves in hard mode
Escape from catacombs in hard mode
Escape from sewers in hard mode
Escape from arctic iceberg in hard mode
Escape from mountain in hard mode
Go through the space station in hard mode
Finish the game in hard mode
Visit each location on each map in one run
Collect all items in one run
Complete the game in under than 35 minutes