It seems i'm the only one who has a prob with puzzle 6. First i thought it was easy: hitting the mines. But i only manange to kill to worms.
It cant be all about timing, i'm trying for 3 hours now.:-/

Anyone?

As you probably have already figured out, you just hit the mines with the baseball bat. Adjust the angle to be as high as possible.

The order you hit the mines doesn't really matter, but I usually hit them in this order:
- the left one
- the one at the top (the worm might fly towards you and kill you)
- the right one
- the bottom one

Well there's no timing needed nor this puzzle is actually difficult. Adjust the angle as high as possible, get near the mines and hit them, that's it.