Remodeling and Limit Breaks

Overview
While leveling up DOLLS provides a small stat improvement, the bulk of improvement comes from the retrofit and limit break systems. The menus for these systems can be accessed from a DOLL's information page.



Retrofit
A DOLL can be retrofitted by spending resources on their retrofit grid. A basic overview of what each hex provides is as follows

In order to unlock a hex, you must have the required materials. This can be determined by tapping the hex you want to invest in. Generally, stat hexes only require stage drops, equipment hexes require a mix of stage drops and boss material drops, and skill hexes require medals. The Materials and drop locations page provides more specific information on where to acquire materials.

At first, only three hexes will be available. To unlock more, the initial hex must be fully invested into (3/3). This will unlock two adjacent hexes. Beyond these initial hexes, greyed-out hexes are unlocked by investing in all adjacent hexes at least once. For instance, to unlock the weapon hex in a base grid, both the top-left offense hex and top right offense hex need to both read 1/3.

Form Change
Once the entire board has been unlocked, resources can be spent to allow a DOLL to form change. This gives them a sizeable stat bonus, slightly increases their deploy cost, and opens up an entirely new grid to invest in. This grid contains even more stat hexes, entirely new equipment, and possibly additional skills. Do note that, however, their new form is considered an entirely separate unit from their base form. This has a few implications:


 * all bonuses conferred by the base retrofit board do not apply (stats,equips,skills)
 * their remaining health is independent of each other
 * their reserve pool is independent of each other
 * doctrine changes are not reflected between the forms

Levels and Personality Expansions carry over between forms. Once unlocked, forms can be freely switched between without penalty.

Branching Form Changes
Certain DOLLS have two options available at the form change stage. The first is the standard form change that is an upgrade to their base form, but the second is a major deviation that entirely changes their unit type. This means entirely different doctrines, skills, equipment, stats, and retrofit boards. These forms also require the rare Development License as an unlock material. Like the standard form change, this form can be freely switched between. Additionally, unlocking one form does not lock you out of the other, so both new forms can be unlocked if so desired.

Limit Break
Limit breaking uses Intelligence Structures(frags) to raise a DOLL's rarity. With this increase in rarity, various stats are raised, a new passive may be learned or upgraded, and the DOLL's platoon size will increase. Every DOLL's rarity can be upgraded in this way, allowing for 1* DOLLS to be just as viable, or even more so in some cases, as natural 3*s. The following table gives a summary of requirements and what non-stat benefits each star provides.

Farming
The standard method to obtain a large amount of structures is by farming certain stages. Every even stage (02A-02N, 02A-04N, etc) has a chance to drop a structure from a stage-specific pool. This method takes a large amount of time and alloy, but can be done at any time. This is usually carried out by a team composition with minimal deploy costs while still being able to easily clear the stage. A listing of each structure drop location can either be found on that DOLL's page or in the Materials and drop locations page.

Shops
The Medals of Valor obtained from completing recon missions can be used to trade for various DOLLS' structures. These structures replenish on a daily basis. The list of available DOLLS is static, however, some require you to have recruited them before appearing in the list. The current list of DOLLS that this applies to is


 * KV-1

Intelligence Structures also have a chance of appearing in the parts shop, though only in sets of two at a time. These do not seem to have any restriction placed upon them.

Fragments of Intelligence
A more costly way to obtain structures is to trade in Fragments of Intelligence for them. These fragments are received upon rolling a duplicate DOLL in the gacha. You receive 1 for a 1* dupe, 15 for a 2* dupe, or 50 for a 3* dupe. This is the only way to obtain structures for certain DOLLS that do not have a consistently farmable source (mainly 3*s).

Events
Events may provide structures as a mission reward or from the trading in of event currency. The amount of structures available is relatively large so these can be a reliable, albeit infrequent, source.