Tested and confirmed! Extremely rare! Metal Slug Advance - Game Boy Advance cartridge

Thank you for viewing!
This item is eligible for combined shipping discounts.
¥200 off for each additional item.
Here is a list of items eligible for combined shipping:
'sRetroGameSoftDeals

Please see below for details.

All software on sale has been cleaned.
All titles have been recognized by Retro Freak, except for those that are incompatible.
Even those that are incompatible have worked without issue.
I do not guarantee operation on the buyer's actual console or compatible console.
For items with backup functions, the batteries have not been replaced, so the save function is not guaranteed.
Returns and refunds are not accepted.
Please check the condition of the cartridges in the photos.

If you purchase multiple items at the same time, you will receive a ¥200 discount on each additional item.
Example: Buy 4 items at the same time, get a ¥600 discount on the total price.

Shipping will be via Nekopos. Up to 4 Super Famicom cartridges or up to 8 Famicom cartridges (excluding those with special shapes) can be shipped together.
Combinations are also possible.

I am not familiar with shipping methods other than Nekopos, and other shipping methods will incur extra shipping costs, so I will only handle transactions in units that fit in one Nekopos-compatible box.
Even if the quantity exceeds this, the discount will still be applied. If the quantity is large, the transaction will be split into two or more transactions, so please consult in the comments.