Urban Run is the 8th mission of Azure Striker Gunvolt, this is the easiest mission to obtain S/5 stars Rank.
This mission is pretty easy. You will find many trucks, garbage and boxes around the field. You need to dodge them to find Merak. While you play through the game, you will be attacked by many Lasers created by Merak to damage or kill you. Jump or dash to avoid them.
When you reach Merak with Joule in the end of the stage, he will talk with you or a bit and then summon a Red Mantis, this Mantis has more Life Points and has red skin. He can use more Missiles and Sphere Balls to attack you. He can be destroyed when his Health reaches Zero, then you need to destroy the Core on his back.