Battle of Alliance: How to Get G-Toilet: Zero Age and the Blast From the Past Badge

The G-Toilet: Zero Age skin is a hidden reward tied to the “Blast from the past” badge in Battle of Alliance (BOA 3.8 – Battle of Alliance: Enhanced). Getting it is not a shop purchase. You have to meet a badge prerequisite, grind a set amount of batteries, unlock two toilet variants in order, and then travel to a specific map to trigger the reward.

Quick answer: Earn the “Assemble” badge, farm 40,000 batteries by destroying buildings, spend them to unlock G-Toilet 4.0 (15,000) then G-Toilet 5.0 (25,000), equip G-Toilet 5.0, teleport to Alpha Hills, and walk into the giant toilet structure to unlock the “Blast from the past” badge and G-Toilet: Zero Age.

Requirements before you start

Two things gate this unlock. You need the “Assemble” badge already claimed, and you need a full 40,000 batteries banked. Batteries are the game’s destruction currency, and you collect them by breaking buildings across the map.

Requirement	Detail
Prerequisite badge	“Assemble” badge must be earned first
Batteries needed	40,000 total, from destroying structures
G-Toilet 4.0 cost	15,000 batteries
G-Toilet 5.0 cost	25,000 batteries
Final location	Alpha Hills (giant toilet structure)

Note: The two variant costs add up to exactly 40,000, so plan to spend everything you farm. There is no shortcut around the “Assemble” badge; without it the final step will not fire.

Farm 40,000 batteries by destroying buildings

Load into a match and start attacking the buildings scattered around the map. Each structure you knock down drops batteries, which count toward your running total.

Keep clearing structures until your battery count reaches 40,000. This is the largest time investment in the whole process, so focus on dense clusters of buildings to speed it up.

Unlock G-Toilet 4.0 and G-Toilet 5.0 in order

Open the character menu where the G-Toilet variants are displayed. Spend 15,000 batteries to unlock G-Toilet 4.0.

With G-Toilet 4.0 secured, spend the remaining 25,000 batteries to unlock G-Toilet 5.0. You need 5.0 specifically for the final trigger, so do not stop at 4.0.

Equip G-Toilet 5.0 from the menu before moving on. The badge only unlocks while you are playing as this variant.

Reach Alpha Hills and trigger the Blast From the Past badge

While equipped as G-Toilet 5.0, teleport to the Alpha Hills map. This is the location that holds the giant toilet structure needed for the unlock.

Walk up to the giant toilet structure. Approaching it completes the trigger and awards both the “Blast from the past” badge and the G-Toilet: Zero Age skin.

How to confirm it worked

The badge notification for “Blast from the past” appears once you reach the giant toilet structure in Alpha Hills. After that, G-Toilet: Zero Age becomes selectable in your character menu alongside the other variants.

If nothing happens at the structure, the most common reasons are that you have not equipped G-Toilet 5.0, or you are missing the “Assemble” badge prerequisite. Confirm both before returning to Alpha Hills, and make sure you completed the full 40,000-battery spend across the two variants.