It's famous bug in (E) version with that freezing after battle with frogs.
Fix:
1. Use DSLazy.
2. Load the rom.
3. Unpack it.
4. Replace file \NDS_UNPACK\data\Apl_Kit\op1.fds with op2.fds for example.
5. Pack rom.
6. Enjoy.
op2.fds is "titles" file. So you can use it without fear of spoiling anything. Or you can use any other .fds file. It must work with any of them. + op1.fds keep no sense or anything story-valueble, so don't worry.
p.s. Sorry for my Eng
Fix:
1. Use DSLazy.
2. Load the rom.
3. Unpack it.
4. Replace file \NDS_UNPACK\data\Apl_Kit\op1.fds with op2.fds for example.
5. Pack rom.
6. Enjoy.
op2.fds is "titles" file. So you can use it without fear of spoiling anything. Or you can use any other .fds file. It must work with any of them. + op1.fds keep no sense or anything story-valueble, so don't worry.
p.s. Sorry for my Eng