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You have 10 days to upgrade and destroy 10 bosses. Good luck! Boss Slayer is an ultra fast paced upgrade game where you're mission is simple: UPGRADE AND SLAUGHTER THE BOSSES! But be aware: you only have 10 lives! Upgrade your guns to shoot faster, to get more money, and other features! Can you beat all the bosses in 10 days? Good luck!


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Boss Slayer is an online skill game developed by Awoker Games, and has been played 22988 times on
83% of people have voted thumbs up


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Millions of people have played online games on Bubblebox, invite your friends and join in on the fun! Bubblebox started way back in the internets infancy, we know games! We host over 3,000+ games, the most popular of which nowadays are shooting, upgrades, simulator, ragdoll and .io games.
Recently the multiplayer io games genre has become hugely popular. Make sure you don't miss, and!

Since we've been around for many years traditionally popular categories like stickman games, RPG, physics and point and click games are packed with great classic titles and games series. Golden oldies which you can still play online for free include Raft Wars, Infectonator, Sift Heads, the Ducklife series, Age of War and Cover Orange.