LocoRoco, Patapon, the God of War priquel and Crisis Core

And also Armored Core Formula Front, it’s such a weird game in the series.

Oh, and Carnage Heart EXA. I’ve never managed to actually get far, but it’s the most unique mecha game there is. You program your mecha from scratch using logic blocks, and you can make it fully autonomous, fully manual (but you have to program each button press), or a combination of two. It takes as many hours to learn as an Armored Core game would take to complete.