I'm using the North American version of the game. I
tried this on VBA 1.7, 1.7.1, and 1.7.2 all to the same
result:
About mid way through the game battles start becoming
very slow. Key presses are delayed at least half a
second, and my of the key presses are processed
twice. IE I'll press up to move, and I'll have to wait
before the character actually moves. Also, many times
when I press A to call a menu up, the menu will come up
and the first item will be pressed as if I had pressed A a
second time. I'll press B to go back because that
wasn't the selection I wanted, and the game will press B
twice, taking me all the way out of the menu.
I tried loading a save from earlier battles about 1/3 of
the way through the game and had no troubles with
those. If you need the relevant files to view the
scenario for yourself, Malohkan [at thing] gamelizard
(d0t) com is where you can reach me. I'll attach my
save file in a battle where this occurs
Save Slot 1 where my described error can be seen