here ya go...taken from the faq
-legaia - Enables Legend of Legaia cheat.
Q: Help!! The '-legaia' switch doesn't seem to fix the problems in Legend of Legaia in
A: This was an error on the authors' part, the correct switch to use via command line is
NOTE: Enabling Accurate CD-ROM Timing in options may produce the same effect, but to
be safe, it's best to use the switch.