Here's why:
* Online-only gameplay: Battle Revolution was designed as an online-only experience.
* Server shutdown: The online servers for Battle Revolution were officially shut down on May 24, 2014.
* No local multiplayer: The game lacks any form of local multiplayer, even with multiple Wiis.
If you're looking for a Pokémon game with offline battles, you can try:
* Pokémon Diamond, Pearl, and Platinum: These games have a robust offline battle system and can be played without an internet connection.
* Pokémon HeartGold and SoulSilver: Similar to Diamond, Pearl, and Platinum, these games offer extensive offline battling options.
* Pokémon Black and White: These games also have a robust offline battle system.
Unfortunately, Pokémon Battle Revolution can no longer be played due to the server shutdown, and there are no known ways to circumvent this.