The Emerald Brine is the second world in Runner 2: Future Legend of Rhythm Alien. The world is based around a sea and dock. The boss of this world is a giant 'copter which shoots cannonballs (both high and low; go on the underside of the pipe for the high cannonballs, and on the top side for the low ones, possibly with a small jump) and drops exploding drums (jump while on top of the pipe). The main stumbling block is to jump+kick, hitting the giant stop-sign on it's body and avoiding the rotors.