[bendog333333]

the first battle with bowsers bug will go any do any jump keep but nother elme happen.

 

[Gamer3000]

http://forums.ngemu.com/no-gba-discussion/127346-mario-luigi-rpg3-eng-v-known-issues-solutions.html

And there are a bunch of other topics related to the same game, including a post in the compatibility thread. Search a bit more the next time.