Skylanders Giants
45 Achievements
1,000
25-30h
Pipe Petard
Chapter 11 - Damage Drill-X by throwing a pipe at him
10
How to unlock the Pipe Petard achievement in Skylanders Giants - Definitive Guide
However, since we want an achievement instead of health, you'll want to switch to a giant skylander and pick one up like any other boulder, then chuck it at the boss.
Note: This can only be done during the first phase of the fight, as after Drill-X takes enough damage, he destroys all the pipes.
Credit goes to Jason Kitchel on YouTube. I did not make and upload this video.
Drill-X is the boss of Chapter 11. There will be two pipes sticking out of the ground, which you can use as cover during the fight. At the start of the fight, switch to a Giant Skylander, and pull one of them out of the ground and toss it at Drill-X's drill when it gets stuck in the ground. Make sure to do this in the beginning of the battle, as the pipes will get destroyed during the fight requiring a replay if you don't get it.
Chapter 11 has a boss fight at the end of the chapter. The Boss's name is Drill-X and he is a big singing robot. In order to get this trophy you must switch to a Giant Skylander while fighting Drill-X, you will notice two pieces of pipe sticking out of the ground in front of Drill-X simply pick one up with and throw it at Drill-X. This trophy will unlock after the pipe damages him.