This week’s North American Nintendo Downloads are as follows: Wii U Download Dr. Luigi – $14.99 (available Dec. 31) CastleStorm – $9.99 Wii U VC Super Punch-Out!! – $7.99 3DS Download Pokemon Bank – free (available Dec. 27) with a 30-day trial; $4.99 after for annual fee Bird Mania Christmas 3D – $1.99 Cubit The Hardcore Platformer Robot – $2.99...