via siliconera
If you type “ball” in DS Rakubiki Jiten two words show up and if you click on the grey word it opens up the classic Game & Watch game Ball. The game is played entirely on the touch screen where you hit left and right to keep the two balls balanced in the air. Another neat easter egg hidden in DS Rakubiki Jiten is the coin sound when you hit the grey word “Nintendo”.
Cool stuff :)
