Imagine, two of the greatest Nintendo 64 games, mashed up into one epic late '90s adventure featuring a lot of wahoo-ing.

Modders Trenavix, Waschpenner and Shyguyhex have thrown favourites Super Mario 64 and Banjo-Kazooie together — and it works pretty damn well. Using the SM64Paint program, the modders have dropped your ol' pal Mario right into the "Spiral Mountain" level of the game usually inhabited by an agreeable bear, Banjo, who carries his bird best friend around in a backpack (that lazy Kazooie).

BK's collectable musical notes have been replaced with Mario's red coins, and enemy Goombas and Shy Guys have replaced Spiral Mountain's usual cohort of aggressive carrots and cauliflowers. But it doesn't stop at the intro level — the modders have appropriated a large portion of the game.

A demo of the mash-up game Super Banjo-Kazooie 64 is available to download with 18 Jiggies (jigsaw puzzle pieces, if you've forgotten) to find, along with a secret stage.