You can advance through levels by navigating obstacles and strategically passing through gates to increase fire range and fire rate shooting at them. Successfully reaching the final gate at the end of each level grants access to the next Era. Each Timeline is composed of multiple Eras, and completing all Eras within a Timeline unlocks the subsequent Timeline.

Along the way, you can collect coins by defeating enemies or gathering coins encountered on the path. These coins can be used to upgrade various abilities and warriors.