> come back tomorrow!

I hate that I can't do a second one after finishing the first task... I know this is supposed to be this magic user engagement trick where people come back day after day because there's no other way to use it, but it's not for me if I can't choose when to play a game or practice a skill

Yeah fair enough, it does have a practice mode after you complete the daily challenge so you can keep playing around with it. There aren’t many tunes added at the moment though.