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Differences from the DC version
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1. 2P Battle
The features in 2P Battle mode have increased greatly, hence the name
Sonic Adventure 2 BATTLE. There are now TONS more levels to choose, and
multiple characters to choose. Also, new costumes can be unlocked
later in the game, and they affect the characters' performance as well
as their appearance.

2. Chao Garden
The other major change of the GCN version is the features in Chao
World, which have also greatly increased. There is a new mini-game,
Chao Karate (I THINK its new), and there tons more features in the
kindergarten.
There is a more complete black market, where you can buy a variety of
fruit, as well as new colored Chao Eggs. The Chao's stats are easier
to view when you pick it up, or with a medical chart in the doctor's
office. There is also a fortune telling house to name your Chao. And,
of course, there is the ability to link to Sonic Advance on the GBA to
transport Chao, as well as being able to purchase exotic Chao eggs,
such as gold, silver, and jewel chao.

3. Kart Racing
New, secret karts are available. Complete the desired character's
every mission to get that character a new car. If you complete all of
Tails's missions, a Chao kart will be available. If you complete all
of Rouge's missions, Eggrobo from Sonic and Knuckles will be
available. All the other characters get new, better karts if you beat
their missions.

4. Menu Themes/Voices
These were availiable on the DC version only for download, but on SA2B,
they come pre-loaded. Also, new themes including Amy, Omochao and
Maria's themes can be unlocked much later in the game.

Il y a de fortes chance que ta DC soit en RGB et ta GC en composite, dit moi si je me trompe.

Autre difference: le bug du homming attack...En effet, sur la version dream, tout marche bien, mais sur GC, un bug provoque parfois l'execution automatique du homming....et toujour dans les PIRES situations...

Euh j'utilise la péritel pour les deux...
La DC a une péritel toute faite, la GC c'est les trois cables rouge jaune et blancs branchés sur un adaptateur péritel, donc je sais pas si ça fait une différence.

Autre difference: le bug du homming attack...En effet, sur la version dream, tout marche bien, mais sur GC, un bug provoque parfois l'execution automatique du homming....et toujour dans les PIRES situations...

Eggrobo from Sonic and Knuckles will be
available.

Jure-le qu'il y est celui-là ^o^

en plus ya plein de vides alors que dans la version originale fallais déjà y aller pour se retrouver dans le seul vide de tout le niveau)...