Sonic Adventure DX is a three-dimensional platformer developed by Sonic Team. It is the sixth installment in the Sonic the Hedgehog franchise.
DX Edition features
This edition was released as a Director's Cut. The game was ported on GameCube and Windows with updated graphics. A new game mode was added featuring 60 new missions that are scattered across the game's levels. This edition also features a collection of 12 mini-games ported from the Game Gear console.
Plot
Set in an Earth-like world, Sonic and his friends fight a monster named Chaos, that was freed from Master Emerald by Doctor Eggman. The scientist wants to tame Chaos and use his devastating power to collect all the Chaos Emeralds and capture the biggest city. In order to help the monster, a new series of robots are created which are powered by the animals put into them.
Gameplay
Sonic Adventure DX features several stages: Action Stages, Adventure Fields, and mini-games. The game features several playable characters which are different in their gameplay. For example, Sonic runs through the levels at high speeds, while Tails has to outrun the hedgehog or Eggman to finish a stage.
While Action Stages basically mean running through a stage rescuing animals and gathering rings, Adventure Fields are small open-world hubs where the players can choose missions to take part in and is not linear. There are no enemies in the Fields, and the players are free to explore them how they see fit.