So, i need a 3DS game for this holidays and after checking that nintendo store there's this Devil Survivor Overclock for 12€.

- I know this was already answered here but i can't find the thread or remember the answer, the original 3DS has 2GB card right? (The games is around 1GB so it should be ok)

- How the hell do i add 12€ to my account or buy directly from my credit card? I only see the option to add fixed values (10/20/60/130€)...

- Should i give the extra 8€ and just buy SMT4? I'm looking for a good story and for something that isn't really frustrating (challenging ok, hard to the point that i need to throw the 3ds to the wall, no).

You can add custom values, there should be an option after you press "buy now". Last month I bought Dual destinies and I managed to transfer exactly 14,99 Euros from my credit card.
EDIT: yes Grargar is right the option will only show up if you don't have enough money to buy the game.

Thank you for your answers, i was going to add one more rant to the "Nintendo hate" if i was only allowed to buy those values in credit.

Still i would like an opinion about DSO vs SMT4 if anyone play them.

You can read some experiences of other players here. If you get wiped twice, you can unlock an easier difficulty for the game.

Will do, i hope that the easier setting doesn't make it too easy since there are some games without balance in that regards (can't remember the game but the easy setting was boring since i was practically invincible and the normal setting was WAY too hard for "normal").

The internal storage is only used for system software - everything else is on the SD card.