Originally Posted by Redonkulous BP
Yeah, you'll get it if you're going for it. I beat the game in 42 minutes without even trying. I have beat the game about 10 times now, though. So, I know where every little baddie and trick will try to kill me. just make sure thast you play plug man's stage and completely stock up on E-tanks, M-Tank, 1/2 damage, spike boots, and Beats before you attempt Wily's castle. Use your 1/2 damage on Wily's last stage, and this achievement will be cake if you have 1 or 2 E-tanks left at this point. I finished with 7 left, but stock up just in case.
Yep, already did. I went through the 8 robots without firing a shot of anything except the Buster at the bosses/minibosses on one file with everything maxed out (full Beats, full Guards, full Tanks, etc), so I'm all good. Keep dying on the 3 beams though...