Google is creating a special version of Google Maps on this April Fool and that is Google Maps in 8 Bits. Now you can see what most gaming console in the past look like when you played a RPG-based games, such as Final Fantasy, Zelda, etc.
To try the new Google Map, just go to Google Map, find the area you want to be displayed, and click on the top right of the map area. You will see a green, yellow, and blue area which is a common color for 8 bits game.
To see previous pranks and list of pranks for this year, have a visit on Wikipedia.