WASHINGTON – A warning for anyone who was alive in the 1980s: Forget getting anything accomplished at your job ever again.

You have a certain Italian plumber and an open-source project to thank for that. The site FullScreenMario allows you to play Nintendo’s classic “Super Mario Bros.” using nothing more than your Internet browser.

The remake lets you play the game’s original levels and even create levels of your own.

So good luck — with the mushrooms and with your boss.

See more in the video below: