Introduction
If you haven't checked our other guide(s) about Anomaly Interception, make sure to drop a view
Mirror Container in Anomaly Interception is a Water Boss weak to Electric Nikkes. It is farmed for Glove T9M gear. This guide will go over:
- Boss HP and Rewards
- Best Nikkes and Teams
- Bossfight Breakdown and Tips
- Gameplay Videos
Boss Rewards
Rewards scale with how much damage you do, with significant improvements at Stages 3 and 6 and reaching their max at Stage 7. At 200 shards, Manufacturer Arms can be used to guarantee a T9M piece.
| Stage | Reward |
|---|---|
| Stage 1 | 0 ~ 120,000,000 Damage |
|
| Stage 2 | 120,000,001 ~ 200,000,000 Damage |
|
| Stage 3 | 200,000,001 ~ 600,000,000 Damage |
|
| Stage 4 | 600,000,001 ~ 1,200,000,000 Damage |
|
| Stage 5 | 1,200,000,001 ~ 2,300,000,000 Damage |
|
| Stage 6 | 2,300,000,001 ~ 3,500,000,000 Damage |
|
| Stage 7 | 3,500,000,001 ~ 4,600,000,000 Damage |
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| Stage 8 | 4,600,000,001 ~ 5,800,000,000 Damage |
|
| Stage 9 | 5,800,000,001+ Damage |
|
Best Nikkes
Mirror Container is a more complex boss when it comes to team building, requiring a Charge unit and a high one-shot damage to break its Glass Slippers.
Against Mirror Container, Electric Nikkes will have their damage boosted a lot if they have Elemental Damage bonuses (from OL & other sources).
Mirror Container is a very beginner-unfriendly boss fight. Should you need Gloves but don't have any of the teams below, just run 1 Electric unit with your main team.
Cinderella: The best Electric Code DPS against bosses.
Maiden: Ice Rose: An off-burst unit who buffs ATK & Elemental DMG of Electric Nikkes.
Anis: Sparkling Summer: One of the best Electric buffers. Her personal damage is great against Water enemies.
Ein: Electric DPS with lots of Charge Damage and ATK buffs. She has the easiest time dealing with Glass Slippers on lower Synchro levels.
Ada Wong: Mainly buffs the ATK and True DMG of B3 Nikkes using Burst, along with good personal damage.
Rouge: Best B1 buffer for Cinderella and Maiden: Ice Rose and provides CDR too.
Best Teams
Here are some example teams you can try:
The 3.5 Anniversary
Mode: Anomaly - Mirror Container || Element: Electric
Characters
About the team
Although Anis: Star's stars can shoot the slippers without requiring aiming hence triggering instant slippers qte failure, this team can overcome the defense buff with brute force.
Burst Maiden:Ice Rose at 12th and 14th burst instead of Anis: Sparkling Summer.
If Maid Mast is used, burst Maid Mast with Neon: Vision Eye or Cinderella as much as possible.
Substitutions
Crown may be replaced with Nayuta.
Anis: Star may be replaced with Moran (Treasure), Rouge (only with Cinderella) or Rapi: Red Hood.
Neon: Vision Eye may be replaced with Cinderella.
Anis: Sparkling Summer may be replaced with Ada Wong.
Maiden: Ice Rose may be replaced with Mast: Romantic Maid, Helm (Treasure), or Ada Wong.
Took a summer/winter vacation from NIKKE?
Mode: Anomaly - Mirror Container || Element: Electric
Characters
About the team
Although Anis: Star's stars can shoot the slippers without requiring aiming hence triggering instant slippers qte failure, this team can overcome the defense buff with brute force.
Burst Maid Mast every third burst (Crown → Crown → Mast).
Substitutions
Crown may be replaced with Nayuta.
Anis: Star may be replaced with Moran (Treasure) or Rapi: Red Hood.
Neon: Vision Eye or Cinderella may be replaced with Snow White: Heavy Arms or Cinderella: Crystal Wave.
Mast: Romantic Maid may be replaced with Maiden: Ice Rose, Anis: Sparkling Summer, Helm (Treasure), or Ada Wong.
The "Proper" Way
Mode: Anomaly - Mirror Container || Element: Electric
Characters
About the team
A team that can actually do well without completely ignoring the main boss gimmick (Glass Slippers).
Burst Maid Mast with Ein.
If Maiden: Ice Rose is used, burst Maiden: Ice Rose at 12th and 14th burst.
Substitutions
Crown may be replaced with Nayuta or Takina Inoue. Anis: Star may be replaced with Rapi:Red Hood, Moran (Treasure), or Liter.
Ein may be replaced with Snow White: Heavy Arms.
Mast:Romantic Maid may be replaced with Maiden:Ice Rose, Anis:Sparkling Summer, Helm (Treasure), or Privaty (Treasure).
No Pilgrims
Mode: Anomaly - Mirror Container || Element: Electric
Characters
About the team
Beginner friendly team. Moran (Treasure) being electric helps team-building in the early-game.
Burst Maid Mast with the stronger DPS.
Substitutions
Moran (Treasure) may be replaced with Rouge or any B1 CDR.
Mast: Romantic Maid and Anchor: Innocent Maid may be replaced with Tia and Naga or Blanc and Noir (not needed if Rouge is used).
Boss Fight Breakdown
Mirror Container is one of the more complex bosses. In short:
- The parts in Phases 1 and 2 are called Glass Slippers and only take damage from the first attack that hits them.
- Bring an Electric Nikke for QTE (red circles).
- In Phase 2, when Glass Slippers are alive, Mirror Container gets a massive DEF boost for each non-destroyed slipper.
Mirror Container deals increased damage to Fire Nikkes:
- 300% at Stages 1~3
- 400% at Stages 4~6
- 500% at Stages 7~9
Phase I

Mirror Container maintains a permanently exposed core.

At the start, Mirror Container fires missiles at random. These can be i-framed or destroyed.

After they land, a Glass Slipper spawns and shoots a laser at the highest attack Nikke.

Next, Mirror Container shoots guns targeting the highest final ATK Nikke twice.
For the rest of Phase 1, attacks repeat in the following order: Slipper → 2x Guns → Missiles

Then, it puts up the first QTE (red circles). Only Electric Nikkes can destroy them.
Interim
After the QTE, Mirror Container vanishes and starts the 2nd QTE (red and grey circles). Avoid using weapons with AoE or spread.
Phase 2

Mirror Container puts on 4 Shields, each increasing its DEF. Destroy all 4 Glass Slippers to remove them.

The following sequence is repeated 4 times:
- Fires lasers at the highest final ATK Nikke.

- Fires a missile that can be destroyed or taunted but can't be i-framed.


- Then prepares a Glass Slipper to attack. When charged, the Glass Slipper will be exposed to attacks. It will only take damage from the first attack that hits it.
- Destroying the Slipper dispels 1 shield.
Tip
For a demonstration on how to break Slippers efficiently without sacrificing damage, watch one of the demo videos at the bottom.

After repeating 4 times, Mirror Container fires lasers, then shoots a missile before putting the 3rd QTE (red circles). Failing results in a team wipe.
After the QTE, if all Shields were dispelled, Mirror Container will alternate between lasers and missiles for the rest of the fight.
Tips
- There is absolutely no need to destroy Phase 1 Glass Slippers other than to time Bursts.
- Stalling the first QTE is worth it if it allows you to get another Burst off.
- Destroying all 4 Glass Slippers in Phase 2 is a top priority when possible.
- For maximum damage, make sure all buffs are up during Full Burst, and make sure the entire team is covered as you charge a powerful shot to destroy the Slipper.
- There is a method to destroy Glass Slippers without covering the team by pausing:
- Turn off the "Sync Cursor to Crosshair" setting.
- Burst and Full Charge with a Sniper Nikke (hold the mouse on PC).
- Pause the game without firing the charged shot.
- Without unpausing, move the crosshair to the location of the Slipper.
- Fire the shot while the game is paused (release the mouse on PC).
- Unpause.
- Reducing the game's FPS to 30 slows down the boss, which might help you get an extra Burst off.
Gameplay Videos
For visual learners, a pretty fast way to understand what to do is to watch a walkthrough/successful run:
Full credit goes to the original creators.











