Silk Worm

About

Silk Worm is a co-op side-scrolling shooter where two players split control between a jeep and a helicopter. You defend against waves of enemies across land and air, needing to cover each other as you progress. A key mechanic involves defeating "goose" helicopters that drop powerups after accumulating kills. These can appear at any moment, even during boss fights, adding a chaotic layer of strategy to the fast-paced action. The game balances arcade-style responsiveness with a need for teamwork to survive increasingly tough levels. The standout feature is its early 1990s co-op focus, which was rare for the genre at the time. Originally released in 1988, it ran on arcade cabinets and home systems like the NES and Amiga, reflecting its broad appeal. The shifting perspectives between land and air combat give it a distinct identity among shooters, while the unpredictable appearance of powerup-deploying gooses keeps the tension high. Its simple yet effective design has kept it a niche favorite among retro gaming circles.