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