If you click Edit Settings on your profile page (or choose Settings from the dropdown in the navigation bar at the top right), you will find there is a new option available for all players:
Hide non-high-score games on homepage and search
If you check this option and save, then when browsing for games from the homepage or doing a search, it will show High Score Games ONLY. This is a great new option for finding new games to compete on! You can always turn it off again to see the non-high-score games, and of course you can always favorite any game (high score or not) to easily get to it from your profile page / sidebar.
One other small change: The "Mario Time Attack" achievement has been removed, because that game is no longer available on PlayItOnTheWeb. So for the time being, there are 81 achievements possible instead of 82. Players who did manage to get this achievement back when it was still possible get to keep the 3000 gold they were awarded for it. Hopefully in the near future we will be adding some new achievements, so check back soon for more updates!