This is Crayon Shin-chan: Obaka Daininden for the DS.
This is a Japanese DS but it is region free and will work on all DS systems regardless of region.
Please note that if you do not know Japanese you will likely need some kind of guide to play this game as the text is in Japanese and I did not see a language option.
The game come complete in box and has been tested. Although the label on the cart is coming up on one corner slightly.
The game will be posted within 2 days of payment.