R.E.D. Alerts, or Rapid Earth Defense Alerts, is a game mode played daily where the player faces a series of battles in different DC locations across the Earth. Each new R.E.D. alert battle is harder than the previous one and the player's team keeps their health and shields from their previous fight.
- Health, shields, turn meter and coolddowns persist across battles;
- Buffs and debuffs do not carry over battles 
- Enemy health, shields, and turn meter persists if a battle is lost. This means that when returning to a lost fight with a fresh team it won't have turn meter advantage over the enemy;
- Revives reset between battles 
- Leader abilities that are applied at the start of the battle are re-applied at the start of every battle (examples: Green Lantern HJ shields are accumulated and Aquaman's crit immunity is applied on every battle);
- Player can pick which battle to fight. Once a battle is started it has to be won in order to move to another one ;
- If a battle is interrupted, e.g. game crash, it will result in an "abandoned" battle which will knock out the entire team ;
- Enemy team power depends on player's top characters power ;
- The matchups change after every battle (because of this it's recommended to start with easier fights).
- Green Lantern HJ
- Team Leader ability (shields) is re-applied at every battle
- Green Lantern JS
- Passive ability triggers at the beginning of every match if he starts below 50% health
R.E.D. Alerts Rewards
|Threat||Enemy Difficulty||Essence||Essence Gems||Hero Fragments|
Note: the hero fragments are for 3 different heroes.
|Character||Threat 4||Threat 8||Threat 12|
|Cyborg: Vic Stone||3 shards||7 shards|
|Hawkgirl: Champion of Thanagar||3 shards||7 shards|
|Chemo: The Deathless Doom||3 shards||7 shards|
|Solomon Grundy: Born On A Monday||3 shards||7 shards||15 shards|
|Star Sapphire: Carol Ferris||3 shards||7 shards||15 shards|
|Wonder Woman: Princess of Themyscira||3 shards||7 shards||15 shards|
|Supergirl: Last Daughter of Krypton||7 shards||15 shards|
|Deadshot: Hired Gun||7 shards||15 shards|
|Arkkis Chummuck||7 shards||15 shards|
|Harley Quinn: Quite Vexing||7 shards||15 shards|
|Bizarro: No. 1||15 shards|
|Jessica Cruz||15 shards|
Collection of guides and tips.
- Long pressing on a character's icon brings up a popup with abilities cooldown information.
External guides and tips
- RED Alert tips by techparadox
- Cleared RED, here's some tips that some of you may find helpful by axuriel
- Doombawkz's RED alert tier list by Doombawkz
R.E.D. Alerts became available on 2017/05/26 (GMT).
- R.E.D. Alerts Announcement (discussion)
- R.E.D. Alerts Update(Discussion)
- Podcast Episode 6 - Alert! Alert! Alert!