Like Kodokami said, if you're looking to make both games portable on one system, you're going to need to emulate.
If you're looking for easy emulation, think about a smartphone.
You can play them both on very easily accessible emulators on Android phones. psx4droid and snesoid for Cross and Trigger, respectively. You don't have to "hack" anything. Just buy the emulator apps for a few bucks.
I think a jailbroken iphone has the same capability (not sure cause I don't have one of those.) and maaaaaybe BB (that one's a big stretch)