If you fancy making yourself feel a little bit short of a few brain cells this morning then go take a look at the Super Mario Maker Calculator in the video below.

Made entirely from the mechanical components found in the level editor, Helgefan’s Cluttered Chaos-Calculator (ID: 705C-0000-01B3-FE78) can accurately add two numbers – in this instance six add six makes 12.

Even thinking about how the calculator works is making me dizzy, but if you want to know about its inner workings head over to Reddit where Helgefan has posted an explanation.

There’s also an image of the level’s complete overview, which you can see below.

Source: Reddit