REEFGUARD — One-Thumb Reef Defense

REEFGUARD is a sharp one-thumb reef-defense arcade. You are a coral core at the heart of a living reef — tap to emit a sonar pulse that bursts incoming ocean debris before it breaches your core. Popping debris close to your heart pays precision bonuses, chain 3+ pops into combo multipliers, collect glowing motes to refuel your TIDE SURGE screen-clearing blast, and survive escalating waves of drift (splitters, phantoms, shielders, warpers). Neon lagoon palette, local high score, one thumb is all you need.