Nintendo has restored online play to the Wii U versions of Mario Kart 8 and Splatoon, after taking the games offline for five months to address a security vulnerability.

After five months, Nintendo is bringing back servers for Splatoon and Mario Kart 8 on Wii U, but the company is already warning that a permanent shutdown could come without much notice.

'Mario Kart 8' and 'Splatoon' for Wii U are coming back online after Nintendo spent months fixing security flaws.