Shield
The Shield is one of the 3 primary gadgets and it protects you from incoming damage until it is depleted. Once the wave has ended, it will gradually restore to full capacity in time for the next wave.
Active Battle Abilities
The Shield has 3 active battle abilities you can unlock. They are mutually exclusive, meaning that you can only select one of the abilities.
HUD
Relevant media can be found on the animations page
1. Shield Icon
Shows the Shields' current status:
- Normal
- Overcharged - the Shield has been overcharged
- Ability Activation - a battle ability has been activated
2. Shield Health
Displays the remaining health. An additional smaller rectangle is shown for the duration of the current battle ability.
3. Battle Ability Uses
A rectangle is shown for each ability use. It is filled if the use hasn't been used and empty if it has.
Electro Blast
Creates a deadly field effect around your dome for a short time.
The Electro Blast zone around the dome does damage, dealing efficiently with threats like divers, ticks and worm rocks.
Invulnerability
Makes your dome invulnerable for a short time. [...]
Reflection
Reflects incoming projectiles for a short time. [...]
Overcharge
As all primary gadgets, the Shield can be overcharged with 1 water 
. Overcharging grants the shield additional health and longer duration of the battle abilities via upgrades.