Kengo Legend of the 9

This is one of the easier Missions.

You get 7 minutes to find and kill the 'Main' Ninja. You'll start in the Forest and it's good to run up to the waterfall where you'll have more space and insta-kills are far easier.

You'll face around 4 waves of Ninjas and then Ninja Mk.2's will appear, after about 3 waves of Ninja2's you'll get a wave with the Boss Ninja in, just kill him to end the level.

The first ninjas can be easily dispatched using Kumitachi and throwing them off the cliff, Ninja 2's have more Stamina and will need either 2 Kumitachi attempts but it's probably best to just kill them with combos unless you spot one has half his Stamina bar.