The collapse mode is the combat segment which involves selecting 6 out of the 13 pilots to sortie against approaching enemies. These chosen pilots will serve to form the defensive team. Intruders comes in waves and the goal is to protect the city akin to tower defense. Battle ends after protecting the city or if the team fails to meet the objective.
The commands are action, move, restore, and defense. Press the action button to issue a skill or attack. You can maneuver using the move button to adjust the position of your mech. The other moves are mechanic restoration and defense. The latter shares the same button to trigger EP recovery.
What happens during combat?
Interact with other characters
During combat, you can have pilots interact with each other. The dialogue gives a glimpse of the experience of the pilots. The topic depends on the situation of battle.
Customize your mechanic
There is an option to swap mechanic weapons using the meta menu while in combat. You can avail new mechanic weapons or make changes if you desire.
Metachips are materials needed to buy new weapons or fortify existing ones. that fortify requires a metachup to be present.