Smash Bros. 3DS 
I was intending to wait for the Wii U version (as I probably won't play the 3DS version much once it's released) but ultimately caved. An excellent portable Smash Bros. Some modes are missing, most notably Event Match, and I'm not fond of Smash Run. It runs super smooth and is a blast to play - 9/10
JoJo's Bizarre Adventure: All Star Battle
I couldn't resist a 2D fighter where you can fight on horseback. I haven't played a lot of this one yet, but it feels just like the anime - over the top and ridiculous. There's a ton of fighters and game modes to get stuck into - 8.5/10
Hyrule Warriors
Probably the best crossover title made, it feels like an equal mix of both parent games are present. Characters all play very differently, and new weapons will change characters completely. The combo system is simple for button-mashers, yet still allows for combo control for the rest. Loads of mindless hack'n'slash fun with a few instant failure criteria to keep you paying attention - 7.5/10
