Agent B10

Agent B10 was one of those games you'd find on a Flash portal in the late 2000s. It fit right in with the era's straightforward, single-screen action games. You played as a secret agent, though the specifics of the developer aren't widely remembered now.

You control the agent with your mouse, moving him around a static room to shoot enemies as they appear from doors and windows. Your main goal is to eliminate all the targets in each stage before they can eliminate you. The mechanics are simple: you click to shoot, and you must manage your limited ammo by picking up new magazines dropped by fallen foes. The pacing is quick, with enemies spawning from multiple directions, which keeps you constantly swiveling and clicking. It feels tense and immediate, a test of your reflexes and aim more than any complex strategy.