Rampart

Rampart on Game Boy is a strategy game where players defend a castle by building walls from Tetris-style pieces, placing cannons, and destroying enemy ships, soldiers, or knights approaching from the water. Choose one of three characters at the start, each affecting cannon strength and defense capabilities (high-attack low-defense, balanced, or tanky). Switch between attack and repair phases to survive waves; the game stands out for its handheld Tetris-puzzle integration with real-time shooting, simple yet addictive gameplay, and medieval fantasy theme with anime-style Japanese version portraits and monster enemies like roving skulls or hooded wizards.