Producer Yuji Naka stated in an interview with IGN that eggs were chosen as the focus of the game to give the player joy from caring for and hatching eggs, and a feeling of anticipation "because you don't know what's going to come out of eggs".
Billy Joel | Billy Wilder | Billy Crystal | Billy Bob Thornton | Billy Taylor | Billy Hart | Billy Connolly | Billy Bragg | Billy Idol | Billy Cobham | Billy Preston | Billy Ray Cyrus | Billy Graham | Billy Eckstine | Billy Budd | giant | Billy the Kid | Billy Sunday | Giant's Causeway | Billy Mitchell | Billy Zane | Billy Squier | Billy Martin | Billy Corgan | Green Giant | Giant | Billy Ocean | Easter egg | Billy Joe Shaver | Billy Meredith |