Full list of all 12 Shoot Many Robots achievements worth 200 gamerscore. It takes around 15-20 hours to unlock all of the achievements on Xbox 360.
Kill 10000 robots!
Kill 100 robots!
Reach level 50!
Beat a mission wearing the astronaut helmet and backpack!
Get 75 stars!
Beat a mission wearing the baby carrier!
Complete a mission on hard or insane without dying or drinking a beer!
Punch two bullets, killing two robots, with one melee swing!
Destroy a robot overlord in multiplayer!
Revive other players 8 times!
Have someone you invite join you in an online game!
Come in 1st in a four player mission!