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On May 22, 2010, Google released its own version of the retro-classic, dot-chomping game Pac-Man. The game, developed to celebrate Pac-Man’s 30th anniversary, appeared in place of the usual Google logo on the search engine’s home page (Figure 5-1). Many people initially assumed that this fun remake was created with HTML5, but a closer inspection revealed that it used nothing more than regular DHTML (excluding the sound). Continuing with the retro-classic theme, in this chapter we will develop our own DHTML game: Orbit Assault, a variation of the legendary Space Invaders (Figure 5-2).