Sonic Adventure is exactly what it says it is: an adventure. Where in later Sonic games, including Adventure 2, would forsake the open-ended structure classic Sonic levels are known for in favor of high octane speed, Adventure revels in translating this less appreciated aspect in 3D. Whether you’re watching the sunrise as you scale the side of a skyscraper or are thrown on a snowboard mid-avalanche, Adventure’s good moments come like a rush of adrenaline. Unfortunately, the other campaigns feel half-baked, most only spanning a spare couple levels before fully exploring experimental gameplay elements. Nevertheless, Adventure captures Sonic’s liberatory joy.