Update index.html

index.html

@@ -230,7 +230,7 @@
                       constructor(isBoss = false) {
               this.x = Math.random() * canvas.width;
               this.y = Math.random() * canvas.height;
-              this.health = isBoss ? 10000 : 1000;
+              this.health = isBoss ? 15000 : 1000;
               this.maxHealth = this.health;
               this.speed = isBoss ? 1 : 2;
               this.lastShot = 0;