2 players recommendation~

Are there any Beat em up or Hack and slash games for 2 players on the DS?

http://www.gamespot.com/pages/forums/show_msgs.php?topic_id=26067592;)

Dynasty Warriors DS is the only thing I can think of.... Try googling it....EDIT There is also Teenage Mutant Ninja Turtles and X-Men

Are there any like co-op ones?

lord of the ring conquest can co-op

You can try Jump Ultimate Stars for the DS... its is japanese, but you can find translation patches.
As far as 2 player possibilities... i can't say for sure because i haven't played it in like forever.. but i do believe it's possible.Someone might be able to clarify that for you.

teheezin · #4Are there any like co-op ones?

TMNT and X-men are co-op