Rare Game Boy Micro Silver Charger with Metroid - Condition Issues

Photos have been added.

This is a set including a Game Boy Micro (Silver) and its charger.
It was used for a startup test, and Metroid Fusion is included as a bonus.
I played Fusion a lot, but I can't remember how to delete the data, so it's still there.

Condition
I purchased this when it was released and it has survived several moves, so there are scratches. The terminal area is also not in the best condition, but I feel that someone who can use a contact restorer or perform disassembly and cleaning could fully restore it.
Please check the photos.

Charging
The connection is poor, but it was able to charge, allowing me to play as shown in the photos.

Game Startup
It can be started by turning the power switch on 2-3 times.
Once it boots up, it will start with 1-2 tries afterwards.

Continuous Play
I played for about 15 minutes with no issues.
(My experience during the 15-minute play session below)

Buttons
All buttons respond.

Speaker
Volume adjustment is okay. No noise.

All of the above is based on my own testing.
Please let me know if you have any other questions.

For those who are looking for one, how about this opportunity?

Regarding Purchase:
This is a vintage item.
Please be sure to view the photos and read the description, and purchase only after you are satisfied with the condition.
While I have described the product as thoroughly as possible, please understand that it is a vintage item, including any minor oversights, before bidding.
Once purchased, we generally cannot accept returns to prevent swapping, so please understand this in advance.