A Vine post by a Japanese user alerted me to this bizarre nugget of Nintendo minutia: if you tap out the Super Mario Bros. theme's opening bar on the "new page" screen of the New Nintendo 3DS' browser, your list of most visited sites changes to STAGE SELECT and you get to destroy each URL brick by brick in a Breakout clone. I've confirmed this for myself, as you can see below. It doesn't work on the original 3DS' browser, which has a different interface.
And now you have one more reason to wait.