An easy way to get this in 5 minutes... worked for me perfectly.
Use the first level. For the first 2 flames, use fast forward and use up all the time allowed. That's right, don't even move.
Now for the third flame (the green one), burn right through everything, your goal is to reach the final stage as soon as possible. You should be able to clear each stage using only 1 or 2 "pass". Now when you've reached the final stage, fast forward all the remaining time except this time stop when there's only a little time slice left. Finish the level by exiting at the top and voilà... Achievement unlocked!