Starting out in Be The Final Boss can feel a little different from most Roblox tower defense or RPG games. Instead of fighting waves of monsters, you are the boss. Your goal is to defend your castle by building a powerful army of monsters while upgrading your own abilities to survive increasingly stronger heroes.
The gameplay loop is surprisingly addictive once you understand how everything works. You’ll constantly earn Coins and Souls, summon stronger units, improve your Skill Tree, and hunt for powerful mutations that make your team much stronger.
If you’re new to the game or simply want to progress faster, this guide covers everything you should focus on.
Be The Final Boss Beginner Guide – Best Units, Fast Souls & Coins, Shards, Codes, and Progression Tips
Before spending any time grinding, open the Settings menu and redeem every active code.
Codes usually reward:
- Coins
- Souls
- Other useful resources
For brand-new players, these free rewards can give you a huge head start. Instead of slowly earning your first upgrades, you’ll immediately have enough resources to summon additional units and unlock several Skill Tree upgrades.
Whenever new updates release, check for newly added codes before you start playing.
Understand How the Game Works
Unlike traditional Roblox defense games, you’re not attacking an enemy base.
Instead:
- Heroes invade your castle.
- Your monster army automatically defends you.
- You improve both your character and your monster team over time.
Your overall strength comes from several systems working together:
- Better Units
- Stronger Skill Tree
- Higher Unit Levels
- Better Mutations
- Upgraded Shards
- Better Equipment
Ignoring any one of these will eventually slow your progress.
Upgrade Your Skill Tree Early
One of the biggest mistakes new players make is spending everything on summons while forgetting about the Skill Tree.
The Skill Tree improves nearly every important aspect of your account.
Some upgrades include:
- Higher Coin income
- Better Soul farming
- Increased Boss health
- Stronger overall progression
Even if you pull an amazing unit early, your progress will eventually slow down if your Skill Tree stays underleveled.
Whenever you earn a good amount of Coins, check if another Skill Tree upgrade is available.
Build Your Team Carefully
Once you’ve summoned some monsters, open your Units menu and place them into your team.
One thing you’ll notice is that not every monster uses the same amount of deployment space.
For example:
- Some units take one slot.
- Others require two slots.
A stronger unit isn’t always the correct choice if it prevents you from bringing several useful support monsters.
Try different team combinations instead of simply equipping the highest rarity monsters.
Every Unit Has a Passive Ability
Power isn’t everything.
Each monster also comes with its own passive ability that can completely change how it performs.
For example, certain monsters can:
- Burn nearby enemies
- Deal area damage
- Apply damage over time
- Trigger powerful active abilities after building energy
Before replacing a unit, read its passive description.
Sometimes a lower-rarity monster with an excellent passive contributes more than a higher-rarity monster with weaker utility.
Turn On Auto Battle
Once your team is ready, enable Auto and begin fighting.
Auto Battle lets your monsters continuously defend your castle while you focus on upgrading or simply let the game farm resources.
It’s one of the easiest ways to steadily collect:
- Coins
- Souls
- Shards
- Experience
If you’re planning to grind for a while, Auto Battle should almost always stay enabled.
Best Mythic Unit
If you’re wondering which Mythic monster is considered one of the strongest overall, aim for:
Mighty Orc
It offers excellent overall performance and remains useful throughout progression.
If you’re lucky enough to summon one early, it’s definitely worth investing resources into.
How to Get Shards
Shards are one of the most important upgrade materials in the game.
The main way to obtain them is through:
- Enemy drops
- Mob farming
The more enemies you defeat, the more opportunities you’ll have to collect additional Shards.
Long farming sessions usually provide the best results.
Why Shards Are So Important
Shards are used to strengthen your monsters.
Upgrading a unit with Shards increases its overall effectiveness, allowing it to survive longer and deal more damage.
Instead of spreading Shards across every monster you own, focus on your main team first.
Concentrating upgrades usually gives much better results.
Upgrade Your Units
Open a unit’s information page to spend Shards on upgrades.
A higher-level monster will perform much better than its base version, making difficult stages much easier.
As your favorite monsters become stronger, replacing them becomes less necessary.
Mutations Can Make Huge Differences
One of the most valuable mechanics in the game is the mutation system.
Two identical monsters can have very different performance depending on their mutation.
For example:
- Normal Bone Grunt
- Cursed Bone Grunt
Even though they’re technically the same monster, the mutated version deals noticeably more damage.
Always compare mutations before deciding which unit to keep.
Use Auto Roll
Rolling manually gets tiring very quickly.
Instead, enable Auto Roll.
This feature continuously summons monsters until something worthwhile appears.
It’s especially useful if you’re chasing:
- Legendary Units
- Secret Units
- Powerful Mutations
Just make sure you have enough resources before leaving Auto Roll running.
Upgrade Fusion Shards
Once you’ve collected enough basic Shards, don’t forget to fuse them.
Progression goes like this:
- Basic Shard
- Rare Fusion Shard
- Epic Fusion Shard
- Legendary Fusion Shard
Higher-tier Fusion Shards are required for stronger upgrades later in the game, so don’t let your basic materials pile up forever.
Sit on the Throne
Here’s a small feature that many beginners completely overlook.
During battles, sit on your throne.
Doing so grants a passive buff while your monsters continue fighting.
It’s an easy bonus that costs nothing, so there’s no reason not to use it whenever you’re defending your castle.
How to Farm Souls Fast
Souls are needed for summoning new monsters, so you’ll always need more of them.
The fastest ways to earn Souls include:
- Upgrade your Skill Tree regularly.
- Defeat as many enemies as possible.
- Increase Soul-related Skill Tree upgrades.
- Continue farming stronger waves.
The more efficient your team becomes, the faster you’ll collect Souls.
Upgrade Soul Harvest
One Skill Tree upgrade deserves special attention:
Soul Harvest
Increasing Soul Harvest boosts the amount of Souls dropped from Elite Waves, making future grinding much faster.
If you’re unsure what to upgrade next, this is usually a safe investment.
Farm Coins Efficiently
Coins are required for almost everything, especially Skill Tree upgrades.
To earn Coins faster:
- Keep Auto Battle running.
- Improve Coin-related Skill Tree upgrades.
- Build stronger teams.
- Push into harder stages whenever possible.
Higher difficulty generally rewards better income.
Always Use Your Free Spins
Don’t ignore the free Spin system.
Free Spins can reward:
- Coins
- Souls
- Valuable resources
Sometimes you’ll even hit a Coin Jackpot, which gives beginners an enormous boost.
Since they’re free, make sure you claim every available Spin whenever you log in.
Keep Improving Your Team
As you summon new monsters, compare them with your current lineup.
Don’t keep using the same team forever.
Replace weaker monsters whenever you find:
- Better stats
- Stronger passives
- Better mutations
- Higher overall power
Constantly updating your lineup is one of the easiest ways to progress through tougher stages.
Beginner Progression Checklist
If you’re unsure what to do next, follow this simple progression path:
- Redeem every active code.
- Spend Souls summoning better units.
- Build your strongest team.
- Upgrade your Skill Tree.
- Turn on Auto Battle.
- Farm Coins, Souls, and Shards.
- Upgrade your best monsters.
- Roll for stronger units and better mutations.
- Fuse lower-tier Shards into higher-quality Fusion Shards.
- Repeat the process while pushing into stronger enemy waves.
Before you log off, here are a few habits that will make your progression much smoother:
- Redeem new codes whenever they’re released.
- Upgrade your Skill Tree whenever you have enough Coins.
- Focus upgrades on your strongest units instead of spreading resources everywhere.
- Keep an eye out for powerful mutations—they can make a bigger difference than rarity alone.
- Use Auto Battle and Auto Roll whenever you’re planning a long farming session.
- Don’t forget to claim your free Spins every day.
Be The Final Boss is all about building momentum. The early game revolves around unlocking better monsters and improving your Skill Tree, while the mid and late game shift toward hunting powerful mutations, upgrading units with Shards, and assembling a team that can handle stronger waves of invading heroes.
If you stay consistent with your upgrades, keep farming resources, and regularly improve your team, you’ll progress much faster than players who only focus on summoning new monsters. A balanced approach—strong units, a well-developed Skill Tree, and smart resource management—is the key to becoming the ultimate final boss.