Idle Breakout cannonball: Upgrade Tips & Cost Guide

The Idle Breakout cannonball is the fifth ball unlocked and one of the strongest direct-damage options in the ball roster. Its defining mechanic is cleaving: when a brick has less health than the Cannonball’s current power, the shot can smash through it without bouncing. This makes the ball especially valuable when your power multiplier is high enough to clear ordinary bricks efficiently.

Cannonball is commonly associated with high damage rather than utility. It does not rely on poison effects or special control mechanics to remain useful. Instead, its value comes from combining substantial power with a fast firing cycle. At high speed and power, even a single Cannonball can provide meaningful damage, with the reference data placing an unupgraded example at roughly 250 DPS.

For a deeper reference on the ball’s mechanics, see the Cannonball page on the Idle Breakout Wiki.

Cannonball purchases follow a steep scaling curve. The first ball costs $75,000, and each subsequent purchase is listed as approximately 1.3 times the previous cost. Because the values can vary between game versions, treat the table below as a planning reference rather than a guarantee for every build.

The most important budgeting decision is whether to purchase another Cannonball or improve the performance of the balls already owned. Early purchases can be affordable after a prestige reset, while later quantities require increasingly large reserves. A balanced approach usually prevents Cannonball costs from delaying essential progression upgrades.

Cannonball upgrades use separate scaling rules. Speed upgrades increase by a factor of 1.5 from the previous listed cost, while power upgrades increase by a factor of 1.25. The early upgrade values below show how the two paths differ.

Use this priority rule when deciding how to spend:

• Buy the first Cannonball when $75,000 is a reasonable part of your current reserve.
• Raise power when bricks are surviving the first hit or when cleaving is not happening consistently.
• Raise speed when the Cannonball already has enough power to defeat common bricks.
• Add more Cannonballs after the current one has useful damage and your economy can support the next purchase.
• Recheck costs after a prestige because stronger multipliers may make earlier purchases more efficient.

A good Cannonball setup is built around thresholds rather than quantity alone. The goal is to make each shot meaningful, then improve firing frequency once its damage can reliably interact with brick health.

Cannonball has a dedicated skill branch with several useful effects. The first two skills improve interactions with black bricks, while the third adds a chance for Cannonballs to damage every brick at once. The fourth skill enables mouse-hold clicking and requires the earlier skills in the branch.

The cumulative cost through the branch is 15 skill points. If your build frequently struggles with black bricks, the first Cannonball-related skill has a clear practical purpose. The all-bricks effect is more specialized, but it can add valuable burst potential once the required path is complete.

Cannonball also contributes to two listed achievements:

• Deal 1 million total damage with the Cannonball.
• Own 10 of each ball.

The first achievement naturally supports regular Cannonball use. The second is a broader collection milestone and may require a long-term economy plan because ball prices rise with each purchase.

The Cannonball is also distinct visually and thematically. It is the only ball whose name contains one word, while the other ball names use a two-word format ending in “Ball.” In the Coolmath Games version, the Cannonball may appear without its signature skull.

The best Cannonball decisions depend on your current prestige, cash income, brick health, and skill path. Use the answers below to keep the investment focused.