Hole.io is a nice game that is like Crowd City on mobile devices. In Hole.io, you control a hungry hole around the city eating all items, such as post boxes, street lights or even humans. Keep eating them until you reach a bigger size. You can absorb smaller enemies while staying away from the bigger ones. The more you eat, the higher the points you will have, and gradually you will be able to reach the top 1 on the leaderboard. Good luck!