The Commodore 64GS, despite its name, wasn't significantly different from the standard Commodore 64; its main upgrade was a built-in 1541-compatible floppy disk drive.
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The SNES controller's distinctive gray color was chosen to match the console's design, but also to avoid looking too much like the Sega Genesis's controller.
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The PlayStation 3's Cell processor, while powerful, was notoriously difficult for developers to program for, leading to longer development times and higher costs.
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