Hey! This incredibly engaging Japanese-style card-based catapult tower defense game lets you enjoy the strategic fun of offense and defense while easily placing your characters. Come and experience it!

▶ Flicking Arrows × Heart-Fluttering Bonds
Join forces with five unique and beautiful female allies, unleashing card "secret techniques" through skillful catapult commands. Every precise strike is a satisfying combination of offense and defense!

▶ Pinball Defense Line · Tactical Free Combinations
Freely customize your "Pinball Defense Line": chain-reaction bouncing attacks through enemy lines, piercing through multiple targets in one go, and unleashing a massive bomb that shakes the entire field! Create the strongest chain combos tailored to the characteristics of each level.

▶ Companionship Development · Collect Your Favorite Characters
Encounter various beautifully designed Japanese-style character cards, each with a unique story and skills. Deepen your bonds through adventures, upgrade your exclusive companions, and build the strongest lineup.

▶ Random Enhancements · A New Challenge Every Time
Utilizing a Roguelike mechanism, each challenge grants random ability bonuses! Freely build your own battle "strategies," making every level a fresh experience with strategic depth.

▶ Five-Person Team · Flexible Deployment
Adjust your five-person team composition at any time to counter the characteristics and attack patterns of different enemies. Combine character skills and pinball effects to create the most flexible offensive and defensive strategies and protect your last line of defense!

The game is easy to pick up and play, yet full of strategic combinations and endless possibilities. Whether commuting, taking a break, or simply wanting to exercise your brain, you can engage in a heart-pounding battle of defense anytime!

Download *Heartbeat Defense* now, build your strongest team, and decide the outcome with pinballs!

This game is classified as "Supplementary 16" according to the Game Software Rating Management Regulations.

The game includes in-app purchases such as virtual currency and items.

Please be mindful of your playtime and avoid addiction.

心動防線