Images from Nintendo's internal company guides have surfaced; helping those within the studios to churn out Mario games like butter.
Alongside the usual tidbits and company secrets, the booklet is far superior to a bog-standard slab of paper stapled together, and is instead a fully designed Nintendo manual.
There's a wad of information for staff on the company's many years in the business, from the original playing cards to the more current Wii U and 3DS. There's also a nifty set of artwork for employees to sift through, whilst putting together the likes of Super Mario Bros. and The Legend of Zelda.
Click here to see more images from Nintendo's 2014 Guide
Would you ever consider applying for a job at Nintendo HQ?