Nintendo UK is giving shoppers the opportunity to grab a replica green hat upon purchasing any Luigi-themed merchandise from the Official UK Store.

All that customers need to is purchase a Luigi item from the online store, add the Luigi hat to their shopping basket, and upon checkout the price of the cap will be amended to £0.00. That's right, it'sa free!

The promotion ends on the 31st October, just in time for those looking to complete their lean, green plumber costumes for this halloween. There's plenty of Luigi merchandise to choose from, including the soon to be released Luigi Amiibo, so will you be taking advantage of the offer? Let us know in the comments below.

[via store.nintendo.co.uk]