
Upon completing all six storylines, the player gains access to a seventh and final story which ties all the stories back together in a climactic boss battle and to ultimately resolve the plot. Sonic and company were given cinematic cutscenes and fully-voiced dialog to help flesh the story out even further. Story in Sonic Adventure is a much heavier focus than any Sonic title before it, with each character having their own unique plot thread that would often intersect with the other six storylines. Newcomers Big the Cat and E-102 Gamma appear along side the returning, but first-time-playable Amy Rose in addition to Sonic, Tails, and Knuckles.

The roster of playable characters was expanded from three characters in Sonic 3 & Knuckles to six total characters. Homing attacks can even be chained together so long as more enemies are nearby. Sonic's own base set of skills had to be changed from previous title in order to more easily navigate in three dimensions, most notably with the addition of the "homing attack" - which allowed Sonic to automatically strike a nearby enemy or object by performing a mid-air dash. Action Stages were more traditional Sonic levels, where generally the goal was to reach the end of the level as quickly as possible. As Sonic progresses though the game, "Action Stages" could be accessed from various entryways in Adventure Fields. Not entirely unlike Super Mario 64, Sonic now traveled between a number of hub worlds referred to as "Adventure Fields" that housed NPCs and light RPG elements. Sonic Adventure re-wrote the rules in which Sonic games were traditionally played.


Sonic in the "Station Square" Adventure Field Five years after their last Sonic game, Sonic Team returned to the Sonic franchise for Sonic Adventure, the first all-3D Sonic game and a launch title for Sega's new Dreamcast console.

Though a number of spin-offs followed for years to come, Sonic Team moved on to other franchises like NiGHTS: into Dreams. After 1994's Sonic & Knuckles, Sonic the Hedgehog sort of fell off the map.
