- unlocking a system in the fluidic realm will unlock the corresponding elite stage;
- every chapter’s BOSS has chance to drop equipment’s, it’s the main way to get equipment;
- challenge attempts reset once every day. VIP users of different levels can buy different number of times;
- all starship’s lost durability will be recovered automatically after the battle;
- if you win the battle with the highest score (get 3 stars rating), then the next time you can “Sweep” it. This instantaneous simulation of battle with a 100% chance to win. This saves a lot of time.