Huntdown Online(2021) -

Every level ends with a unique boss. To earn the "Clean Sweep" (no deaths) reward:

You can duck behind crates and into doorways. Most projectiles will miss you while in cover, but watch out for grenades. HUNTDOWN ONLINE(2021)

Bosses usually have 3 distinct phases. Don't rush; focus on dodging first to learn their "tell" before attacking. Every level ends with a unique boss