Super Smash Bros. update 1.0.7 now live for 3DS and Wii U

Since the launch of Mewtwo last week for Club Nintendo members that registered both their 3DS and Wii U copies of Super Smash Bros., there have been multiple reports and videos showing off insane Mewtwo glitches caused by false custom moves from imported Mii fighters and bugs causing issues online and in various other modes within the game. Update 1.0.7 fixes all of these issues and makes sure Mewtwo no longer causes any problems – so now it’s safe to play online again for you Mewtwo mains!

The update on 3DS is 1700 blocks, while the update on Wii U will take up 21MB of space

Source 1, Source 2