Oh--yeah, it's got a couple of moments where you have to figure out the right technique or right gadget for the job but nothing that should stump you for a long time.  Maybe if you try to solve all of the Riddler's puzzles.  It's hard to describe.  It's kind of an open world game but it's also got a tight narrative and plenty to find.  Easter eggs galore.  I'm sure you'll love it.

I think The Wonderful 101, Lego City Undercover and Sonic Lost World don't count as third party. They were published by Nintendo.

Games that deserve to sell better, maybe not at 60 Euros, but you can get most of them for 20 Euros or less (AC4 needs 2 more months to be at 20):

Rayman Legends
Need for Speed: Most Wanted U
Splinter Cell: Blacklist
Assassin's Creed 3&4
Batman: Arkham City Armoured Edition
Deus Ex: Human Revolution Director's Cut
Tekken Tag Tournament 2
Injustice: Gods Among Us
Resident Evil: Revelations
Mass Effect 3

Maybe also ZombiU, but I think it sold well for what it is.

Sonic & Sega All-Stars Racing Transformed also sold ok.

Wii U games that don't really deserve better sales:

Sniper Elite V2
FIFA 13
Madden 13
Batman: Arkham Origins
CoD: Ghosts
CoD: Black Ops 2

3rd party games that need to sell better should have all features intact, be released on time, and if it doesn't have all features, than cheaper.

It kind of deserved it for screwing Wii U owners with a 7 month delay though.

Somehow, I forgot I own COD: BO2 and Resident Evil Revelations.  Both are great games.

I think we're really just listing good Wii U games at this point, though.  I guess people that only own a Wii U should buy them and the actually do deserve better sales but at the same time, they're usually available elsewhere and the Wii U version is often missing features.  Sometimes major.  Sometimes minor.  I personally LOVED Black Ops 2 until it didn't get the multi-player maps the other versions were getting.

Sonic Lost World

Every game on here has received attention. I really enjoyed Funky Barn. Sure, the box art makes it look like shovelware and its really low-budget makes it look like a flash game; but it's a solid farming simulator, really addictive, and way more enjoyable than Zoo Tycon on the XONE. Plus, the gamepad was utilized way better than in most AAA WiiU ports, it's touch screen fits perfectly for the drag-and-drop, point-and-click PC controls that simulators require

When I get a WiiU I'm getting Deus Ex Directors Cut for it. I might have to get it soon, it's already hard to find. Watch Dogs however I'll get for PS4, I know this is going to be a fully series and I want to play them all on 1 platform.

The rest I don't care about, I'd buy Dark Souls II, or pretty much any JRPG hitting the PS3 for WiiU if they made a WiiU version, but that's not happening. Heck I'd buy Destiny for WiiU if they made one, much rather buy the game on WiiU then PS3.

eventually ill buy lego city and sonic lost world.