Reddit mentions of Disney INFINITY: Marvel Super Heroes (2.0 Edition) Video Game Starter Pack - Wii U

I'd say the Disney Game thing

or the dog house

There is also Disney Infinity 2.0 which will focus on Marvel Superheroes, if he likes superheroes a lot.

Additionally, there is the Lego Marvel game that came out a while ago which is very fun and co-op

This is the starter pack for Disney Infinity 2.0 which is a better game overall then the first Disney Infinity and is actually cheaper.

I'd still probably start with the first game but there really is no penalty to starting here. If the girl is a big Marvel fan, this may be the place to start. If she is a bigger Disney fan, I might start with the first Disney Infinity.

You need to choose one of 3 base sets.

Merida and Stitch

[Thor, Iron Man and Black Widow] (http://www.amazon.com/Disney-INFINITY-Marvel-Heroes-Starter-Nintendo/dp/B00KWHJ1O2/ref=sr_1_2?ie=UTF8&qid=1418408339&sr=8-2&keywords=wii+u+disney+infinity&pebp=1418408464658)

[Mr.Incredible, Sully and Capt. Jack] (http://www.amazon.com/DISNEY-INFINITY-Starter-Pack-Wii-nintendo/dp/B00AXI9X20/ref=sr_1_1?ie=UTF8&qid=1418408339&sr=8-1&keywords=wii+u+disney+infinity)

Then just buy the figures you want in addition
[Figures] (http://www.amazon.com/gp/product/B00BUDJR3C/ref=INF_figure_HQP_image?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=hero-quick-promo&pf_rd_r=01TMYX512CK278NJFYQA&pf_rd_t=201&pf_rd_p=1875819702&pf_rd_i=B00AXI9X20#Figures)

Keep in mind the Incredible, Sully and Jack play set are Disney 1.0 and the others are the new updated. So Disney 2.0 figures won't work on it.

I saw this Wii U starter pack that has the portal, 2.0 game, and some Marvel Heroes for $14.

I might just get that if all I really need is a portal...

https://www.amazon.com/Disney-INFINITY-Marvel-Super-Heroes-Starter/dp/B00KWHJ1O2/ref=sr_1_1?ie=UTF8&qid=1501051541&sr=8-1&keywords=disney%2Binfinity%2Bwii%2Bu%2Bstarter&th=1