Last Defense is a classic shoot ’em up arcade game from the Sega Mega Drive and Genesis era, developed by AAR. In this retro title, players take on the role of Earth’s defender against an invading fleet of Reptilian spaceships. The story kicks off with these aliens deciding it’s time to wipe out humanity, seeing us as a threat to the universe. They’ve watched how people have trashed the planet—polluting rivers and oceans, wiping out animal and plant species without a second thought, burning through natural resources, and starting endless wars just to grab more power. It’s like those real-world headlines about climate change or conflicts you hear about, but cranked up to sci-fi levels where aliens step in to “fix” it by ending us all. Your job is straightforward: blast those ships before they reach Earth and carry out their plan. If you’re into quick, nostalgic gaming sessions, you can jump right into Last Defense fast and easy online for free, straight from your browser.