Various Google services also hide Easter eggs meant to be amusing entertainment.
Searching for “anagram” shows “Did you mean: nag a ram”.
Searching for “do a barrel roll” or *”Z or R twice will rotate the results page a full 360 degrees. This is a reference to the Nintendo video game Star Fox 64.
Searching for “recursion” shows “Did you mean: recursion”, which allows you to recursively run searches for recursion.
Before and during the span of the 2010 FIFA World Cup, searching for various terms which Google has statistics related to, such as “world cup”, “world cup usa vs england”, or “world cup brazil”, causes the result index at the bottom of the page to read as “Gooooooooooal!” instead of “Goooooooooogle”.
Searching for “tilt” or “askew” using a Webkit based browser (such as Google Chrome, Safari, or Android/iOS built-in browsers) or a recent version of Firefox (7+), makes the page ‘lean’ to the right a bit.