Google

Google: Image Breakout was an online game built into Google Images that could be accessed by typing "Breakout" into the search tab. The game was a version of the game Breakout by Atari, but every block is a Google Image result for the game.

Google: Image Breakout

I-Mockery

Abobo's Big Adventure is a freeware parody Flash game. Inspired by various video games released for the Nintendo Entertainment System, the game features Abobo, a boss character from the Double Dragon franchise, traveling through the worlds of several different games to save his son. Developed by I-Mockery founder Roger Barr, Abobo's Big Adventure was released in January 2012 to positive critical reception.

Abobo's Big Adventure

Trailer

Atari

Polyvox

Yars' Revenge is a video game released for the Atari 2600 in 1982. It was created by Howard Scott Warshaw and was Atari's best-selling original title for the 2600.

Yars' Revenge

Gameplay Video

YouTube Snake was an easter egg game in the YouTube video play that was first included in July 2010, however has since been removed. The game was a playable version of the game Snake and was accessible by pressing up when a video was buffering.

Easter Egg Browser Games

Google: Image Breakout

Abobo's Big Adventure

Yars' Revenge

YouTube Snake