Not that I usually find getting a good deal on a game online a find, but I did end up with Trip World (GB-JP) for $75+ Mario Kart GBA cart only. The game usually runs $200+.

Cart has the usual discoloring plastic found on lots/most Japanese carts with an excellent sticker, very clean pins/board. Not a long game but a fun one and amazing attention to the details with visuals/audio for the era/system. Definitely something to hold on to.