The PSP Go was one of the most radical console redesigns of all time. It was much smaller than other PSP models, with buttons hidden behind a sliding mechanism, and most controversially of all didn’t feature a UMD disc drive. That meant no physical games and no UMD movies: everything had to come from the digital PlayStation Store. Despite this, Sony actually charged a significantly higher price for the PSP Go than other PSP models. It didn’t catch on, unsurprisingly, and Sony started bundling it with several free games. It was an experimental device that was ahead of its time in some ways: it marked the first time a console maker had tried to sell full retail games digitally.