Good idea Bungle!
I've played most of these, so will just do some rapid fire replies. The only I one I would universally recommend is Bit Trip Runner 2, the rest come with caveats.
Bit Trip Runner 2: Really fun 2D platformer/rhythm game. Looks great, catchy music, Charles Martinet does the voice iirc, and Mop It Up beat every single one of my scores by at least double the points amount. I recommend everyone on my friends list to fall off the platforms a lot to artificially inflate my scores.
Trine 2: Not a fan if playing solo. The levels in these games take forever, all the non-combat sections are puzzles based around physics which always feel janky, and the story is the most predictable fantasy stuff. It does look really nice though, and I know people like these games in multiplayer.
Little Inferno: Kinda feels like an idle game like Cookie Clicker where you combine items and burn them to score points. It's got a good sense of slightly dark humor and it does have a point to make, but I don't think it's as clever as it thinks it is. One of those games which makes discussing them difficult without giving away the surprises, but also not interesting enough to recommend on its own without the novelty of said surprises.
Nano Assault Neo: Think twin-stick shooter (Robotron, Assault Android Cactus) meets Mario Galaxy style planetoids. I really like the game, but the Gamepad use is minor (just adjusts your additional guns' positions), and I believe the (New?)3DS port has more levels including some rail-shooter style ones. Hoping this gets an expanded sequel on Switch, like FAST Racing Neo/RMX.
Zen Pinball 2: I wonder if this business model worked. There were heaps of tables, but first you had to download them all as demo-DLC, and then buy them individually. I think I got them all to try, but in the end only bought one or two. A bummer is how many of the better tables are about Marvel and other super mainstream franchises, but obviously they don't have the rights to get the actual Avengers actors likenesses and voices.
I preferred the tables with less licensing stuff, such as the Planet Mars one, but those were also the safer ones with less zany features.
Toki Tori 2+: A game I really admire, but also find endlessly frustrating. It's a mostly interconnected world like 2D Metroid, and you can go anywhere right off the bat. You unlock no new abilities, it's just about discovering how everything interacts. Exceedingly elegant in its design. However, I get impatient very quickly, because you're often waiting on enemies to walk into precise spots before trying to spring some convoluted three-step trap on them. Nothing is more annoying than seeing some bubble move at glacial speed, only to miss its target by like 2 pixels while you stand there unable to influence the Rube Goldberg interactions.
There's speedruns of this on Youtube and they make it look easy, but while I can usually see the solutions, executing them reliably was often beyond me.
P.S.: Chasing Aurora is not in the poll but was also a digital-only launch game. Never played it though.