Bullet: Surge - Si Yu Xiao - Character Pack

Enter the storm with unstoppable force.

The battlefield shifts with the arrival of Si-Yu Xiao, the fiercely determined sister of Ling-Ling Xiao, now a playable character in Bullet Surge! Trained in the powerful martial art of xingyiquan, Si-Yu doesn’t dodge bullets—she plows through them.

New Playable Character: Si-Yu Xiao

Si-Yu rewrites the rules of bullet manipulation. Instead of moving bullets the traditional way, she charges straight into enemy fire, physically ramming bullets into one another to obliterate them. Master her unique style to dominate the board with raw, tactical aggression.

• Use Si-Yu in Score Attack, Online Versus, Boss Mode, and Classic Score Attack.

• In Classic Score Attack, she follows her original board game ruleset—perfect for seasoned strategists and purists.

• Her bold playstyle rewards planning, positioning, and fearless momentum.

New Boss: Fourfold Mirror

Face your reflection—and your reckoning. Si-Yu’s mirror-self, Fourfold Mirror, enters the grid as the first boss to possess a physical token, actively navigating the battlefield.

• Fourfold Mirror moves across the grid, shoving bullets and distorting patterns in real time.

• Challenge her using any base game character.

• Expect an intense, dynamic duel that pushes your tactical reflexes to the edge.

Can you master the surge, or be shattered by your reflection?

This DLC requires the base game Bullet Surge to play.