When you're playing through the Super NES Legend of Zelda game, you come across lots of walls that look like they can be destroyed to find some goodies behind them, but some of them are just old, crumbly, and not real breakable. Wouldn't it be great if there were some way to tell them apart?

And there totally is!

First, find a wall that you want to test. Then press and hold the Sword Button (commonly known as the 'B' Button) then walk into whatever wall you want to test. Keep trying to walk into the wall and Link will eventually start tapping on the wall with his sword.

If it's a normal, non-breaky wall, you'll hear this tapping sound.

But!

If it's a breakable wall, you'll hear this tapping sound instead.

Which will save you time, effort, and you won't waste time throwing bombs around walls that will never break.

So it's totally win-win... er... win.