How do you beat monkey go happy 2 stage 10

Click on the grass all the way in the back, there should be a rock. Hit the lock with it then take the metal detector to behind the treasure box and dig that hole. There's a key, then take the metal detector again and put it behind the monkeys. There's an x after the first grass thing. When you dig up the hole there's a treasure box, take the key and put it in there.
And there's your answer, you're welcome.