Ori and the Blind Forest: Definitive Edition - Nintendo Switch

This achievement is easily paired with Flying Fury and attainable by using your Charge Flame, by holding X, and killing one of the large pink blob enemies that explode into smaller pieces when killed. Just use your charge flame, jump, and release the attack near this enemy and you should easily get both achievements.

Easily gotten right after getting Charge Flame. After getting the Stomper (jumping frog with fists) to break the floor once you get to the big tree, go left and unlock charge flame. Once you have it break the blue column to the right and climb up to the lever. There is a big pink spiked slug above the lever that can't hit you. If you charge the flame then jump to the corner closest to the slug and release you can get Deadly Detonation without getting hit. Got it on three accounts first try. Just make sure to be in the top left corner above the lever.