data per 16 clock ticks for 6 sprites. Although attribute memory exists for them, sprite 0 and 7 are unusable, their pixel fetch timing window occupied by the bottom level indicator (which just precedes the hblank) for sprite 0 and two rows of characters at the top of the screen, which just follow the hblank, for sprite 7. Notes References Further reading Comprehensive coverage on the history of the entire series up through 1999. Morris, Chris (May 10, 2005). "Pac Man Turns 25". CNN Money. Vargas, Jose Antonio (June 22, 2005). "Still Love at First Bite: At 25, Pac-Man Remains a Hot Pursuit". The Washington Post. Hirschfeld, Tom. How to Master the Video Games, Bantam Books, 1981. Strategy guide for a variety of arcade games including Pac-Man. Includes drawings of some of the common patterns. External links Pac-Man highscores on Twin Galaxies Pac-Man on Arcade History 1980 video games Android (operating system) games Arcade video games Pac-Man arcade games Atari 5200 games Atari 8-bit family games ColecoVision games Commodore 64 games VIC-20 games Famicom Disk System games FM-7 games Game Boy Advance games Game Boy games Game Gear games Video games about ghosts Intellivision games IOS games IPod games MacOS games Maze games Midway video games Mobile games MSX games Namco arcade games NEC PC-6001 games NEC PC-8001 games NEC PC-8801 games NEC PC-9801 games Neo Geo Pocket Color games Nintendo Entertainment System games Nintendo Switch games PlayStation 4 games SAM Coupé games Sharp MZ games Sharp X1 games X68000 games Tengen (company) games TI-99/4A games Tiger Electronics handheld games U.S. Gold games Vertically-oriented video games Video game franchises Video games about food and drink Video games developed in Japan Virtual Console games Windows Phone games Xbox 360 Live Arcade games ZX Spectrum games Z80 Articles containing video clips 1980s fads and trends Video game franchises introduced in 1980 Video games adapted into television shows VSDA Game of the Year winners World Video Game Hall of Fame Hamster Corporation games Multiplayer and single-player video games