Build a Boss Skills
The best skills in Build a Boss: skill tier list, upgrade order and skill builds that boost your boss's damage, defense and cash income.
What are Skills?
Skills are permanent abilities that boost your boss beyond its parts: extra damage, faster attacks, better defenses and more cash per wave. Picking the right skills shapes every fight.
Why plan skills?
Pick Winners
Focus on the top-tier skills instead of spreading points too thin
Upgrade in Order
Follow a skill order that keeps every level and zone within reach
Synergize Parts
Pair skills with your build so lasers, guns and armor hit their full potential
Featured & Essential
Build a Boss Best Skill: Top Picks & Upgrade Order
Find the best skills in Build a Boss, including Sharper Shots, Lucky Shot, Scavenger, and Spotter, plus the smartest upgrade order for cash and gems.
Build a Boss Best Skills: Tier Rankings & Upgrade Guide
Discover the best skills in Build a Boss, ranked by value. Learn which cash and gem upgrades to prioritize for faster waves, more loot, and easier boss fights.
All Skills
Build a Boss Skill Upgrades: Best Picks & Loadout Guide
Learn which skill upgrades to buy first in Build a Boss, including Sharper Shots, Lucky Shot, Scavenger, and Spotter for faster clears.
Build a Boss Skills Guide: Best Upgrades & Loadout Tips
Learn which skills to buy first in Build a Boss, how to spend cash and gems wisely, and the loadout tactics that carry you through the hardest waves.