Nintendo has surprised Switch Online subscribers with special version of 'The Legend of Zelda'.

Legend of Zelda

Legend of Zelda

The company stealth released the title along with the previously announced launches of 'Solomon's Key', 'NES Open Tournament Golf' and 'Super Dodge Ball', which all joined the NES catalogue of games.

Described as a "souped-up" version of the game, this edition lets players start with plenty of rupees and items, and all equipment including the White Sword, Magical Shield, the Blue Ring and the Power Bracelet.

In the blurb for the title - which was originally released baack in 1987 - it's also confirmed: "Beating the game once grants you access to a more difficult version of the game called Second Quest."

The series and its huge world can over be overwhelming and intimidating for newcomers, so the new version should allow those people the chance to experience it without being put off.

The surprise addition comes after reports that hackers have already been adding more games to the Switch Online's NES lineup.

One hacker - known as kapu - told Polygon: "I have serious doubts that it points to any vulnerabilities. "I'd say it's just a side-effect of making it easy on [Nintendo] to add more games as they officially release more, thus making it easy for modders as well."

However, he noted that the possibility the exploit is simply an oversight on the video game giant's part, and recommended that users don't try the hack themselves.

It's been suggested the company may patch Switch Online in the future, and potentially even ban users from being able to play online.