🎯 Cách chơi
Serious Head is a wave-based defense shooter where you fight off waves of monsters and work toward the final day, when you close the portals. You purchase defensive structures, recharge your energy, and upgrade your weapons. On a computer, move with WASD, shoot with the left mouse button and use the right button for the iron sight. Switch weapons with the mouse wheel or keys 1–6, and jump with Space. Bosses join the fight along the way. It is listed as mobile-friendly, though the publisher only describes the desktop controls. The core tension is resource management — everything spent on structures is unavailable for weapon upgrades.

