Yeah you can.
The matter here is, you have to be super careful.
Don't trust on someone else's list. Make yours.
Why? Because your scores will be looked at. If something goes wrong, you're done. They won't think twice on reporting your illegit score
Also don't play on an empty account.
You must use a main account and proper scores. Never send the same score more than once.
It would really surprise you the amount of guys who are constantly checking the scores, accounts and whatever they can find there.
If they catch something wrong, they'll make a thread for the whole community to report you
It's not hard, though. Just play different games, and don't rush at them. Anyways you can only get 3 pieces per day.