Wii U eShop
Metroid Prime Trilogy (Nintendo, €9.99 / £8.99 until 5th February, then €19.99 / £17.99)
Rock 'N Racing Off Road (EnjoyUp Games, €5.99 / £5.39)

Wii U Virtual Console
Castlevania: Circle of the Moon (Konami, €6.99 / £6.29)

Wii U DLC
Hyrule Warriors: Majora's Mask Pack (Nintendo, €6.99 / £6.29 or free with Season Pass) - Contents include:
A new Adventure Mode map (Termina) with six new 8-bit weapons and sixteen new mask-inspired costumes as rewards
Two new playable characters (Young Link and Tingle)
Three new costumes (Skull Kid's Clothes for Lana, and Era of the Hero of Time Outfits for Sheik and Impa)

Wii U eShop Temporary Discount
Cake Ninja 3: The Legend Continues (Cypronia, €3.69 / £3.33 until 5th February, normally €4.99 / £4.49)

Wii U eShop Promotion
Rock 'N Racing Off Road (EnjoyUp Games, €4.99 / £4.49 for users who have already downloaded Abyss, 99Seconds, Unepic, Rock Zombie, 99Moves or Spy Chameleon on the same Wii U)

3DS eShop
Gunman Clive 2 (Horberg Productions, €2.99 / £2.50)

3DS Retail Downloads
Best of Board Games (Bigben Interactive, €24.99 / £19.99)
Best of Arcade Games (BigBen Interactive, €24.99 / £19.99)

3DS HOME Themes
[Update: NES Sword-swinging Link and NES Samus Aran themes will no longer arrive this week.]
NES Balloon Fighter (Nintendo, €1.99 / £1.79) - Available from 30th January
NES Fire Mario (Nintendo, €1.99 / £1.79) - Available from 30th January

nothing again