Electronic Arts has been my worst nightmare while I was trying to redesign higher-memory-addressing Gen/MD carts in Eagle CAD because of the single sided solder pads and the fact that opening their special carts always ends with a broken shell! Ugh...
The component side of the cart is usually B1 to B32, not A1 to A32. Clearly those are not A1 to A32 as labelled because A1, A2, A31 & A32 are supposed to be power pins.