Mario + Rabbids Kingdom Battle is one of the strangest premises for a crossover game that I've seen in recent memory. Take Super Mario Bros, the Raving Rabbids, and XCOM, mix em' all together, and you've got Kingdom Battle.
Easy to understand gameplay with surprising depth; Excellent skill and progression system; Smooth and satisfying combat mechanics; Shooting Rabbids never gets old
The Rabbid humor can be too much at times