Some Super Smash Bros. for Wii U owners have reported errors after playing the For Glory online mode.
Error 160-0103 prevents users from loading Super Smash Bros. for Wii U, and enter Data Management on the console, and even has seen hardware becoming "bricked" when users try to format their systems.
Nintendo have yet to comment on the issue, and those who have experienced the error are, at time of writing, having to pay for repairs. Those who do unfortunately encounter the error would be best to wait for Nintendo to respond to the issue before tinkering with the system.
Have you noticed any issues with your copy of Super Smash Bros. for Wii U?