How do you complete the test of strength in the little foot village?

You can use a pen and rub it back and forth on the a button.

Or if your still stuck you can use the button on the back, keep pushing it on the A button. Thats how my freind beat it for me.

If I have to push the A button really fast - I usually just rub my thumb back and forth across the A button - it actually works - give it a whirl!

I know a couple tricks,

1. Put the controller on a pillow on a stool or block, (this is going to sound wierd but it helped me)
If your cold you can tap the a button really fast!
2. Take a spoon and rub it around the A button, it doesnt work as much though
3. You can use a pen in the same way
4. If you can't beat it, you could, go to the walmart or something and buy a turbo controller.

Use a flat surface

With the standard control the way I passed test of fear , was to use both the movement lever and the green button at the exact same time . When going left push green button the same time ,same for going right . However many times you go one way or the other push the green button at the exact time only that many times.