Disney Epic Mickey 2: The Power of Two: 7522 MB.: 9574 MB. Sonic & All-Stars Racing Transformed: 5898 MB. New Super Marios Bros U: 1733 MB.: 1913 MB. Highly Compressed Wii Games FreeĮSPN Sports Connection: 1645 MB. Mighty Switch Force HD: 525 MB.: 1941 MBWii U retail games.: 1378 MB. What’s interesting to see is that the indie title Trine 2 actually takes up more space than New Super Mario Bros U. You can of course store your games and downloads on external drives.You can find the full breakdown below. Remember, the Wii U Basic set only has about 3 GB left for game downloads, while the Deluxe version has 25 GB free space for games and media. We got a list of the available for download, and how much space they take up. Obviously, full retail games will take up a lot more space than indie titles. The Wii U supports full game downloads - anything from retail games to indie titles can be downloaded on the.