Right, best check your manager isn't within eye line of your screen.
All clear? Now, open a new browser window (just in case) and punch in the URL of your new favourite online addiction: Arrow Head.
The creation of programmer Jérémy Graziani, Arrow Head takes the "press the button in time with the symbol" mechanic familiar to all dance mat masters and Guitar Hero addicts and translates it into a keyboard-breaking experience.
As the game page explains, your goal is "to match your inputs with an unstoppable continuous overwhelming flow of arrows." And boy are they overwhelming.
A green "life" bar is gradually depleted should you mistime your button bashing, and if your boss walks back into the office you can hit space bar to pause the action.
And yes, it works on mobile as well.
Head here to play the game, and post your high score in the comments below.
