So how do I do this

If you sign up using this link, you get up to a $20 bonus. Everyday that you login to the app, you get a daily bonus. You click on the "Tower" icon in the bottom panel and it's a one-on-one challenge between you and another player, whoever wins the challenge gets the money. To practice at the games, without risking your earnings you can play in the arcade, and you can still earn money in the arcade as well. To win even more earnings, you can click on the matchups and they have bigger prizes to earn. You can cashout your earnings once you get $10.