Here is the full list of all 26 Planet R-12 achievements.
No soldier killed in battle.
Won one level of the game one soldier
Boss of the second level, the real test.
Boss of the first level, the robot in the robot?!
New rapid-fire weapons for Johnnie
The first Boss is a formidable machine.
Boss of the third level, do not approach him too closely.
Boss of the fourth level is full of surprises.
Boss of the fifth level, a very large and very angry!
New powerful weapon for Johnnie
New shotgun with explosive rounds for González
Melee weapon for Ann
Great triple gun for Misha
Won two levels of the game one soldier
Won three game level one fighter
Won four game level one fighter
Between two fires.
Angry Birds.
You won that game!
You have passed the level of the game in tactical mode.
You have passed 2 levels of the game in tactical mode.
You have passed 3 levels of the game in tactical mode
You have passed 4 levels of the game in tactical mode