Barrels are your attack currency in Team Battle. Here's how they flow:

• Barrels from Spins and other events go into your personal inventory.
• Barrels spent on a successful attack (when an enemy object is fully destroyed) are added to your team's main progress bar.
• Skulls are bonus points earned each time your team damages an enemy object. They convert into Barrel points and go straight to the team's progress bar, not your personal inventory.

The more Skulls your team earns, the more Barrel points you add toward the grand prize.

Attacks are collaborative. Everyone on the team can chip in Barrels on the same enemy object.

1

Tap the green barrel button next to an enemy item to invest your Barrels and damage it.

2

Keep an eye on the attack progress bar. It fills up as the whole team contributes.

        

3

Once the bar is full, the item is destroyed. Every team member who contributed the minimum Barrel amount can then collect that item's reward.

Each time your team damages an enemy object, the Skull progress bar next to that item fills up a little more. Skulls track how many times the item has been hit. 

Once the item is fully destroyed, the accumulated Skulls automatically convert to Barrel points and are added to the team's progress bar.

• Spins are your main source of Barrels, so keep Spinning to stay in the fight.
• Collect your item rewards throughout the event. Don't wait until the end, since they expire.
• You can check how much each Skull is worth from the event's tooltip.
• If you leave your team mid-event, you lose all accumulated points and won't be eligible for rewards, even if you join a new team. You can't re-join the current event.

• You didn't contribute the minimum Barrel amount. Each item's reward requires a minimum Barrel contribution during the event. If you didn't reach that threshold for a specific item, you won't be eligible to collect its reward.

• The reward expired before you collected it. Rewards aren't claimed automatically. You need to tap to collect them before the timer on each reward runs out.

  

• You left or switched teams during the event. If you leave your team mid-event, you lose all accumulated points and become ineligible for rewards, even if you join a new team before the event ends. You can't re-join the same event.
• Your team lost and the grand prize was already claimed. If the other team won before the event ended, only the winning team receives the grand prize. You can still earn individual item rewards by continuing to attack.

Even if the other team wins the grand prize first, the event isn't over for you. You can keep attacking the opponent's Base to earn individual item rewards. You just won't be eligible for the grand prize since it was already awarded.