Here is the full list of all 13 Rock Boshers DX achievements.
Collect some machine gun ammo.
Collect some coal rockets.
Find a hidden area.
Collect the Pistol.
Sit through the game load to unlock `CHEESE DREAMS` arcade game.
Collect 5 of each food type to unlock `AQUA KITTY` arcade game.
Collect 10 of each food type to unlock `GHOST PYRAMID` arcade game.
Collect 15 of each food type to unlock `BOSHTEROIDS` arcade game.
Collect all the food pickups.
Collect some steam laser ammo.
Evade the giant worms and make it to the exit.
Get to the planet surface with your new tank.
Complete the game.