This is the walkthrough for the Hidden City of Balkai level as featured in Full Frontal Assault. It is the location of the second of the three Planetary Defense Centers disabled by the mysterious villain.
Walkthrough[]
This level introduces several new enemies and defenses. The primary new threat comes from ranged units: soldiers wield damaging miniguns, while demolitionists fire grenades that can destroy your turrets. You'll also face the grungarian bomber, a slow but durable gunship that is immune to mines and serves as a miniboss.
To counter these threats, you gain access to the Fusion Turret. At 2,000 bolts it has superior range making it a solid but pricier upgrade over the Pyro Turret. You also unlock the Plasma Mine (a simple explosive trap) and the Standard Barrier (which temporarily blocks enemies), though turrets remain the better long-term investment.
Grab the Combuster from the first weapon pod and begin exploring. Enemy waves are less frequent here than on Korgon, giving you more time, although you can still use 
to instantly teleport back to base. Your immediate goal should be to acquire the Swingshot, located in a pod reached by taking the left path from your base and then crossing two platforms to the right. The Swingshot is required to access one of the level's major weapons.
Besides weapons from the previous level, you can find several new ones. The Sonic Eruptor is a powerful shotgun[a], the Thundersmack is a throwable lightning rod that electrocutes nearby enemies, and Mr. Zurkon is a combat synth who follows and assists you.
Reaching the two major weapon nodes requires some traversal. For the first, head north of your base and use the meteor pad on the disconnected bridge to launch yourself close to a grind tube leading directly to the pod. For the second, use the Swingshot on the versa-target along the path to the main Center. This will fling you to a tower where you can hoverboot-jump to another pod on the west side of the map.
When you are ready, attack the two key nodes. Both are heavily defended by all common enemy types, with Missile Minions acting as minibosses. After capturing both nodes, proceed to the Planetary Defense Center. It is protected by multiple shield generators, each guarded by another Missile Minion. Once you clear the ground forces, a grungarian bomber will appear. Defeat it, reactivate the Center, and teleport back to base to prepare for the final assault.
For the final waves, a solid strategy is to stack all your turrets in one lane and defend the other one yourself. Expect to face brawlers, soldiers, and demolitionists, with a Missile Minion appearing partway through and two bombers at the very end. Co-op play will feature even more enemies.
After completing the level, return to the Starship Phoenix II. If you have enough medals, you can earn a promotion that unlocks seven weapon pods per level and the Fast Hoverboot and Swarmer Hoverboot upgrades. These increase your speed and allow you to run over weak enemies like grungoids. Continue to the galactic map to proceed to the GrummelNet Plasma Harvester on Proteus VII.
Notes[]
- ↑ Unfortunately it lacks the timed super attack from its original appearance in Tools of Destruction.