We should probably warn you that the following story is going to do terrible things to your productivity, but chances are you've come here having already switched on your Out Of Office.
For those unacquainted with the world of online emulators like Game Oldies, you're in for a treat. Built by communities of retro gaming fans, emulators take the core programming mechanics of old video games and (admitted with dubious waving of copyright laws) plug them into new technologies, like Adobe Flash technology - making them playable on your computer browser.
The golden minds behind Game Oldies have uploaded countless old cartridge games to their online library, including the entire Mega Man series.
You can have a look through the entire catalogue of games here, or skip to the following Mega Man titles below.