Here is the full list of all 34 Enemy Mind achievements.
Defend Humanity
Destroy Ikiryo in under a minute
Destroy Ouroboros in under 30 seconds
Get over 10,000,000 points in a single run
Kill 50 enemies as a Scuttler
Take over the unknown ship
Destroy 5000 Enemies
Destroy Goliath in under 30 seconds
Take out 5 ships while in an asteroid
Beat a level without being hit
Kill a ship with every shot in the Vic
Destroy Two Enemies While in an Asteroid
Destroy the Schell Games logo
Avenge the Aratus
Complete Level 8
Leave 10 ships with no ammo in a single wave
Complete Level 7
Complete Level 6
Destroy 50 ships with Heat-Seeking Missles
Complete Level 5
Complete Level 4
Destroy 1000 Enemies
Complete Level 3
Destroy 500 Enemies
Complete Level 2
Complete Level 1
Destroy 100 Enemies
Destroy 100000 Enemies
Make it through all 8 levels in one session
Kill 20 Enemies in a Single Aratus Parasite