I wonder if that really has Pokemon Ruby on it? That publisher has a habit of using misleading screenshots - I have a copy of "Gunstar Super Heroes 2" from them (really a title hack of Sgt Rock: On The Front Line) with screenshots on the back from both the GBA and Mega Drive Gunstar Heroes games...
Still, if it is really Ruby, it should be dumpable (GSH2 doesn't have any copy protection at least) so it might be interesting to pick up.