You know... If I were you, I wouldn't bother searching for this on ebay. About the cheapest that you can find it online there is for around $11 and up. Now normally that is cheap for a GBA game, but you can buy it direct from ebworld.com for <a href="http://ebworld.com/ebx/categories/products/product.asp?pf_id=231239">only $9.99</a> brand new. And you are also dealing with a reputable company when you do that. I've looked for JJ in actual EB stores too, though I have not seen it there. Who knows, they might be able to order it for you if you went into one and only had cash for it.
But I wouldn't pay more than $10 for this game (not counting S&H). Oddly enough, amazon.com is selling it for <a href="http://www.amazon.com/exec/obidos/tg/detail/-/B00007L128/qid=1046277462/sr=1-2/ref=sr_1_2_etk-vg/103-3194527-2092655?v=glance&s=videogames&n=468642">more like $30</a>.
heh, interestingly enough, in the comments section of ebworld.com, JJ Tublear posted a comment about the game. I like the quote: <i>"Otherwise this game actually looks pretty good graphicswise. Completely not recommended."</i> Sounds like you reviewed it without playing it. How unprofessional. :-)