Ninjin: Clash of Carrots starts out as a silly, colorful beat 'em up, then takes a dark turn down a surprisingly frustrating and challenging path. There is a huge arsenal of weapons and perks with which to engage enemies in both local and online co-op. New gear is constantly unlocked along the way, which keeps things interesting (until you rage quit, that is). A little challenge is fine, but in Ninjin, many mechanics feel unfair, and the later bosses' difficulty level is a sharp contrast to the rest of the game. A bit of balancing of the end-game missions would do wonders, but unless that happens, Ninjin remains hard to recommend to everyone.