PixelJunk Shooter

Alright guys for this one all you have to do is kill 100 enemies with any fluid. A fluid is water, lava, or magnetic liquid. GAS DOES NOT COUNT. This is another trophy you should get while playing the game, you should receive it near the end of episode 2 or the beginning of Episode 3

You should get this one while you are going through episode 2, but a good spot to farm is the last level in episode 2, in about the fourth or fifth area. Its the area where you get the water suit. After obtaining the water suit there are 4 fire guys you can kill. After killing them kill yourself or retry. Rinse and repeat. This should help get the remaining enemies you need. I got this after about 20 minutes worth of farming. Here is video to show my method: