A stage filled with powerful monsters mass produced in the abandoned lab of Acron. As there are many monsters completely immune to certain types of attack, pilots with limited armament will have difficulties hunting down the enemies. Great Vega which appears at the end of the quest has incredible durability and strike force so pilots should watch out.

Tragic Golem is almost immune to all types of attacks and its strike power is beyond imagination. It is impossible to kill the boss alone. The monsters in this stage drop items below level v5 but some drop v6 items.

Acron's secret lab is a crucial point where all three species use all their intelligence force and tactics to win over but it's also a charming hunting spot for pilots.