Do I have to start over from the first level after failing a level?
No need. After failing a level, you can immediately retry the current level without starting over. Unlocked levels are permanently saved, allowing players to repeatedly challenge any unlocked level to accumulate rewards for upgrading their aircraft.
Does the BOOM skill have a usage limit?
The number of times the BOOM skill can be used is tied to clear rewards. The number of BOOMs available per game depends on the number of BOOM rewards earned from clearing the previous round. If no BOOM rewards are carried over from the previous round, the skill cannot be used and must be re-earned by clearing the stage again.
Will upgrading fighter jets affect game balance?
No. Aircraft upgrades solely enhance combat efficiency during matches (such as faster enemy aircraft takedowns and improved survivability). However, the level of difficulty scales proportionally with progression.
Is the damage from obstacles and enemy projectiles the same?
Inconsistent. Whether it's stationary obstacles in the environment or projectiles fired by enemy units, contact with the fighter will result in corresponding health loss. Players must give equal attention to both threats and plan the fighter's movement trajectory accordingly.