Monkey Island has sound on the GP32, it just depends which version you are playing.
If you have the original version which came on floppy disk etc it has PC speaker sound which the GP32 can replicate. The problem is if you use the newer versions which had reworked CD sound so you can't get that onto the SMC. the same goes for MI2...
Quick Tip: If the actions in MI1 appear in a MI2 style, with pictures for the inventory items, you are playing the updated version, the original had more verbs and they were written in simple green pixel font. I think there were EGA & VGA versions too...
Hope this helps...
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