Here is the full list of all 62 Beat Hazard 2 achievements.
Play for 4 (non Steam) Hours
Reach Wave 20 in Boss Rush
Reach Wave 10 in Boss Rush
Blast 500,000 Kilotons of Bosses
Score over 1,000,000 playing Signal Disruption
Complete 5 Shadow Mission
Score over 1,000,000 playing the Beat Hazard 2 theme
Score over 1,000,000 playing Game Up
Complete 5 tracks using a War Bringer Cartel ship
Score over 1,000,000 playing Beyond Imagination
Score over 1,000,000 playing Split Frequencies
Play for 3 (non Steam) Hours
Score over 1,000,000 playing Disturbance
Score over 1,000,000 playing Cosmic Voyage
Complete 5 tracks using a Blazer Labs ship
Complete 5 tracks using a General Industries ship
Complete 1 Shadow Mission
Play for 2 (non Steam) Hours
Blast 200,000 Kilotons of Bosses
Level Up to Elite Rank
Complete 5 tracks using a Scorched Earth ship
Complete 5 tracks using a Cra$y Thief ship
Level Up to Captain
Successfully Complete 20 Tracks
Complete 5 tracks using a Mosquito Systems ship
Own a ship made by Scorched Earth
Complete 5 tracks using a Brute Inc ship
Play for 1 (non Steam) Hour
Blast 100,000 Kilotons of Bosses
Own a ship made by General Industries
Own a ship made by War Bringer Cartel
Level Up to Officer 3rd Class
Own a ship made by Mosquito Systems
Take Out a 10,000 Kiloton Boss
Own a ship made by Cra$y Thief
Successfully Complete 5 Tracks
Own a ship made by Blazer Labs
Own a ship made by Brute Inc
Successfully Complete a Track
Take Out a 5,000 Kiloton Boss
Take Out a 500 Kiloton Boss
Level Up
Successfully Complete 50 Tracks
Successfully Complete 75 Tracks
Successfully Complete 100 Tracks
Play for 5 (non Steam) Hours
Complete a 4+ minute track on Zen difficulty
Win a daily/lightning challenge
Place top 10 in a daily/lightning challenge
Place top 10 in a daily/lightning challenge 5 times
Place top 10 in a daily/lightning challenge 10 times
Reach Wave 30 in Boss Rush
Take Out a 15,000 Kiloton Boss
Blast 1,000,000 Kilotons of Bosses
Complete 10 Shadow Mission
Complete 25 Shadow Mission
Complete 50 Shadow Mission
Complete all Shadow Missions for the Built in Ships
Complete all Shadow Missions for a Ship
Complete all Shadow Missions for 5 Ships
Complete all Shadow Missions for 10 Ships
Complete all Shadow Missions for 20 Ships