Chests
- Get Chest to obtain parts to upgrade arms. You can get it in the follows
- When you win a battle, you may get a Victory Chest (Common, Rare, Epic chests) based on the battle results.. You can also purchase them in the shop.
- You can get a Free Chest every four hours. However, it is limited to three times a day.
- You can get a Stage Chest , When you win each stage with three stars in the Single Player Campaign mode.
Parts
- Arms can be upgraded by collecting parts. You can collect parts in the follows;
- To open the chest.
- To craft different parts to get a new part in the Parts Lab.