I don't know what kind of overhead it would take for the //gs to
handle all the conversions mentioned, but it seems that some sort of
dynamic recompilation might be more in order.  Since you're wanting to
capture the strengths of the //gs hardware, then you might have to get
clever about conversion of the sound and graphics.  For example, take
the midi music and convert it to a format more streamlined for the //
gs sound chip with an appropriate, yet tuned sound bank that only
contains the necessary instruments.  (or use a midi-to-mod conversion
tool, I'm sure there's thousands of them out there).

The less work the //gs has to do during the game, the more you can
spend on making the interpreter as fast and efficient as possible.
After all, it wouldn't be a good game if it were too slow to enjoy.

A million extra brownie points to whomever makes "Day of the Tentacle"
work on a //gs.

-B
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