Nintendo launched a sale for a number of third party titles on Wii U and 3DS, with the prices detailed here. More games are on sale and can be found on Nintendo‘s store front or on their website. Happy shopping!
Capcom:
Mega Man Legacy Collection 3DS: 9.99
Resident Evil Revelations 3DS: 4.99
Resident Evil Revelations Wii U: 9.99
Resident Evil Mercenaries: 4.99
Super Street Fighter IV 3D: 4.99
Monster Hunter 3 Ultimate (3DS/Wii U): 13.49
Ducktails Remastered: 5.10
Dungeons and Dragons: Chronicles of Mystera: 5.99

SEGA:

Sonic Generations 3DS: 19.99

Sonic Boom Rise of Lyric: 19.99

Sonic Lost World (Wii U): 19.99