Here is the full list of all 18 Rochard achievements.
The base game contains 14 achievements, and there is 1 DLC pack containing 4 achievements.
Complete the game in 3 hours or less
Defeat Maximillian
Collect 100% of all Gold Collectibles
Kill a human enemy with another enemy's body
Collect all upgrades
Collect 50% of all Gold Collectibles
Kill 100 enemies using objects shot or dropped with G-Lifter
Kill 100 enemies using the Rock Blaster
Collect 25% of all Gold Collectibles
Kill 2 or more enemies with a single exploding mechanical enemy
Electrocute a human enemy
Kill an enemy by falling on him
Kill an enemy with an object shot with G-Lifter
Kill a human enemy with deflected bullets
Get through the challenge level 'Assembly Line'
Get through the challenge level 'Brainyard'
Get through the challenge level 'Shaft Shuffle'
Get through the challenge level 'Container Chaos'