Omni Vaders

Omni Vaders is a compact browser arcade shooter inspired by classic alien-wave games, rebuilt as a free-roaming fight. Dodge through enemy waves, aim with the mouse, switch ship modes, unlock triple shots, and push through escalating boss patterns until the final metroid threat goes down.

It is small, fast, and score-driven: survive long enough to power up, collect heals when enemies drop them, and keep moving when the screen fills with bullets.