I just (yesterday) installed a TerraOnion Mode in a SPCH-5501. I'm definitely in for a Wild Arms play through (never played it when it was released) and review!

I recently was given a flood damaged GameGear and just completed restoring it. New caps, repaired a bunch of rotten traces, removed corrosion, etc. It works great. Been wondering what to play on it so this list should come in handy, thanks!