required donor board
This reproduction requires a special version of Super Mario Bros 2. If you look at the bottom of the cart, all the pins must be there. Most SMB2 versions are like like SMB3, with the middle pins missing and will not work. Another way to find the required donor cart is to look at the label. The correct version of SMB2 will not have the Nintendo quality seal on the bottom right corner.

Note: An extra charge of $12 will apply to this reproduction due to the extra cost of components required to make FF3j.