If you're looking for some old school arcade thrills, but can't decide whether you want to play Pac-Man, Pong, Donkey Kong or Space Invaders then don't worry, because you don't have to decide with this mashup of all three by Dick Poelen called Pacapong.
The gameplay works by launching a Pac-Man across the familiar maze using a paddle from Pong, you then have to munch your way around eating as many pills as possible while avoiding the ghosts. Your control of Pac-Man is limited though as he will be tractor-beaming his way across the screen to the other paddle.
There are also little Space Invader icons in the maze, when you eat them a Space Invader will descend which you'll need to shoot or avoid. You also get the occasional guest appearance from Donkey Kong, because why not? "Combining three classic games into one awesome mash-up, with multiple maps and cool retro music, Pacapong is a wonderful blast of retro arcade fun." says Alpha Beta Gamer.
And it's true, it isn't simply a conceptually nice-sounding idea, it's actually a great misuse of your time.
You can go here to download it. (Windows, Mac & Linux)