Combos

From the official website:

Combos reward skilled actions with bonus pearls. Making combos can be very profitable!

Bounce Kick combo is achieved by hitting an enemy after bouncing on something.

Double Bounce, Triple Bounce and Super Bounce, are achieved by hitting an enemy several times in the same movement.

Ninja Bluff is achieved by damaging an enemy while using an ink cloud.

Double Kiss by healing two teammates in the same movement.

Quake Shot by hitting a lot of enemies in one stomp.

Eagle Shot by shooting an enemy from the longest range that you can.

Team Trick is achieved by hitting an enemy and pushing him onto a spiky shell.