Final Fantasy Hacktics

All I need to do is take the midgarsorom spell get rid of the monster and turn the bubbles blue . I can do it for the psx version but it doesn't work for the psp . If its not possible is there another already in game effect I could use foe a water spell like tornado ?

I just tried for the last 6 hours with breaks of course all to no avail. When I use Tilemolester I can't find the palette at all. It seems as though it is not possible from my vantage point.