Full list of all 63 Beat Hazard achievements. It takes around 15-20 hours to unlock all of the achievements in the base game on Windows.
The base game contains 36 achievements, and there are 2 DLC packs containing 27 achievements.
Unlock all the Perks
Buy all the upgrades for a Perk
Max out all the Perks
Get $10,000 in the bank
Get 10,000 kills using Micro Missiles
Get 10,000 kills using the Ultra Beam power up
Reflect 10,000 projectiles using the Reflect Shield power up
Kill 150 enemies with 1 Ultra Beam blast
Reflect 150 projectiles with 1 Shield burst
Survive with 4 bosses on the screen in Boss Rush mode
Get to Wave 30 in Boss Rush mode
Complete The Razorburn Shadow Mission
Complete The Dragon Fire Shadow Mission
Complete The Collector Shadow Mission
Complete The Speedy Shadow Mission
Complete The Slick Shadow Mission
Complete The Mosquito Shadow Mission
Complete The Death Blossom Shadow Mission
Complete The Juggernaut Shadow Mission
Complete The Star Runner Shadow Mission
Level up to Shadow Rookie
Level up to Shadow Operative
Level up to Shadow Covert Agent
Level up to Shadow Officer
Level up to Shadow Captain
Level up to Shadow Commander
Level up to Shadow Force Elite