Here is the full list of all 49 Stardust Galaxy Warriors achievements.
Sink 5000 Marine enemies.
Reach stage 25 in gauntlet mode using 'Normal' custom settings preset.
Reach stage 20 in gauntlet mode using 'Normal' custom settings preset.
Reach stage 15 in gauntlet mode using 'Normal' custom settings preset.
Reach stage 10 in gauntlet mode using 'Normal' custom settings preset.
Reach stage 5 in gauntlet mode using 'Normal' custom settings preset.
Spend a lot of money buying upgrades.
Max out any single mech stat.
Buy an epic upgrade.
Beat a campaign level without taking health damage.
Play a game in challenge mode.
Beat the Campaign game mode.
Do not enjoy the disco.
Beat Unstable Sun level in Campaign game mode.
Beat Scrapyard level in Campaign game mode.
Beat Robot Factory level in Campaign game mode.
Beat Gas Giant Rings level in Campaign game mode.
Beat Alien Hive level in Campaign game mode.
Beat Abyssal Wreck level in Campaign mode.
Destroy the rock in Abyssal Wreck level.
Beat Water World level in Campaign mode.
Beat Frozen Skies level in Campaign mode.
Beat Asteroid Field level in Campaign mode.
Play a game in gauntlet mode.
Launch the game.
Create a custom option preset.
Beat the campaign without a player dying or being incapacitated.
Beat the campaign without buying anything from the Junk Merchant.
Beat the campaign using only flamethrower as the primary weapon.
Beat a campaign level in multiplayer with only one player collecting powerups.
Kill another player with friendly fire.
Destroy 5000 Generic enemies.
Get rid of 5000 Organic enemies.
Disassemble 5000 Mechanical enemies.
Play a game with a friend.
Revive a fallen friend 10 times.
Enjoy the disco.
Beat the campaign using only melee and abilities.
Beat a single player campaign using the 'Iron Man' preset and only Black Bear.
Get all post-level honorary titles.
Use all available weapons.
Use all mech classes.
Destroy an enemy with its own bullet.
Reach stage 5 in Strike mode using "Normal" custom settings preset.
Reach stage 10 in Strike mode using "Normal" custom settings preset.
Reach stage 15 in Strike mode using "Normal" custom settings preset.
Reach stage 20 in Strike mode using "Normal" custom settings preset.
Reach stage 25 in Strike mode using "Normal" custom settings preset.
Reach stage 30 in Strike mode using "Normal" custom settings preset.