dbz budokai tenchaichi2

hi peeps i have all the itemsand i know witch items to put together in z item fusion but wen i go to put them together it says u lack the item fusion numbers can any of u people help me i want to have all the character!thnx

I'm pretty sure there's an item required to fuse other items.

i already know what items to put together but i wont work thats what i dont get

Maybe, you're missing something?
Make sure to double-check it. :)