Are gba games region locked?

[Koopa trooper]

can someone please tell me cause i want to buy a game from America and i want to know if it will work on my english DS!

 

[MrCrazyDavis]

No, they're not. Thats how I got Warioware:Twisted or however you call it, they never released it in Europe.

 

[Kanye Omari West]

I highly doubt they can region lock a GBA cartridge. But I'll look it up

edit: http://www.eurogamer.net/forum_thread_posts.php?thread_id=46884