Here is the full list of all 16 Switch 'N' Shoot achievements.
Acquire a shield.
Complete an entire sector without missing any power-ups.
Get a final score of 50.
Get a final score of 100.
Overload your weapon power and hyperdrive to the next sector.
Get a final score of 10.
Get a final score of 250.
Get a final score of 500.
Get a final score of 750.
Get a final score of 1,000.
Kill an Incubator.
Kill 10,000 aliens.
Acquire 1,000 power-ups.
Hyperdrive 250 times.
Kill 50 Incubators.
Reach Sector 7.