Based on the balloon, the Rocket Balloon is a Super Troop. By increasing the Balloon when it reaches at least level 8, it can be unlocked.
Strategy
Offensive: When you need to use balloons to engage defenses (such Archer Towers) at a large distance in order to attack the defense or activate the Clan Castle, the Rocket Balloon’s speed boost lets you save on Haste Spells. Rocket Balloons allow you to quickly fill in these gaps where regular balloons would be destroyed or badly damaged before they could reach the defense, freeing up a spell slot that can be used for other purposes (like an additional Freeze Spell).
Defensive: When used as a defensive Clan Castle troop, rocket balloons might be more useful than standard balloons. When dealing with them, their much faster movement speed significantly slows down the attacker, which can cause the Rocket Balloons to quickly deal massive damage to large groups of troops or force the Archer Queen or Grand Warden to activate their abilities early.