So long story short when I went to go turn on my Wii u, it had all the games, Twilight princess HD wind waker HD and lots of other Zelda games and so many others, then when I turn on my Wii u this morning they're all gone. I don't know if it's a pretendo glitch or what. But I'm honestly stuck, because I can't get my games back and apparently all my memory is taken up. I can't delete truly anymore. And I don't know what caused it. It's like the memory of the games are still there, but for some reason, I can't play them and I have to redownload everything. Is this a known glitch? Please help.