The fastest build in Megabonk. Stack speed to insane levels with Calcium, converting velocity into raw damage. Dash around the map at lightning speed while decimating everything in your path.
This build requires excellent positioning and movement. You'll be moving extremely fast, which can be difficult to control. Not recommended for beginners. Master kiting mechanics before attempting this build.
Unlock: Defeat 1,000 Skeletons, then purchase from Unlocks tab
Default Weapon: Bone (Ranged Boomerang)
Class: Ranged/Skirmisher
Speed builds up continuously over time while moving. Taking damage from enemies halves your current speed (fall damage does NOT affect it). Damage output increases based on your accumulated speed with infinite scaling potential.
Continuously builds speed while moving. No upper limit - can reach insane velocities with skilled play!
Your accumulated speed directly converts to damage output. The faster you go, the harder you hit with exponential scaling!
Enemy damage halves your speed (not fall damage). Must maintain perfect dodge gameplay for maximum power.
Essential items to maximize your speed-to-damage conversion
Calcium's signature weapon. Ranged boomerang-style weapon with fast attack speed that scales with your movement speed. The faster you move, the faster you attack. Perfect synergy with the speed build.
Effect: +15% movement speed
Rarity: Common
Unlock: Level Agility Tome to Level 5
Foundational item for the build. Stack multiple if possible. Each sock compounds with
Calcium's passive for exponential speed gains.
Effect: Summons lightning to strike nearby enemies
Complements your hit-and-run playstyle perfectly. Lightning strikes nearby enemies
while you zoom past them, providing excellent crowd control.
Effect: +100 max HP, +50 HP regen
Your main survivability item. Gives you room for error since taking damage halves your
speed. The HP regen helps sustain through minor chip damage.
Effect: +25 max HP
Good early game option for a quick health boost. Cheaper alternative to Holy Book
when you need survivability but haven't found better items yet.
Effect: +50 max HP, -50% HP regen
Trade-off item for pure max HP. The reduced regen is a downside, but extra HP pool
gives more margin for error when speed stacking.
Effect: +20% Lifesteal with overheal shield
Provides sustain through lifesteal and can create an overheal shield for extra protection.
Good synergy with high damage output from speed stacking.
Effect: Converts movement speed to attack speed (up to 40%)
Excellent synergy item! Your high movement speed gets converted into even faster attack speed,
multiplying your DPS further.
Understanding how Calcium's Speed Demon passive works
â ïļ Perfect dodging is essential - every hit costs you 50% of your accumulated power!
Tomes are permanent upgrades that level up throughout each run
Effect: +7% XP gain per level
Faster leveling = faster speed stacking. More levels mean quicker access to more items and stronger damage conversion.
Part of the "Holy Trinity" meta strategy (XP + Curse + Luck Tomes).
Effect: Spawns more enemies with higher damage and speed, but better XP and loot drops
More enemies = more risk of getting hit = speed loss. Only take if you're
confident in your dodging skills. Reward is worth it if you can stay clean.
Effect: Increases movement speed stats
Bonus: Unlocks Turbo Socks at Level 5
ESSENTIAL. Directly increases your base movement speed.
Level this to 5 ASAP to unlock Turbo Socks, then keep leveling for maximum velocity.
Effect: Increases drop quality and item rarity
Part of the "Holy Trinity" meta. Better items = better speed items = faster speed accumulation.
Helps you find multiple Turbo Socks and other key items.
Priority Goals:
Key Actions:
Optimization:
Move in wide circles around enemy groups. Your speed lets you outrun everything while Bone and Lightning Staff do the damage. Never stop moving - speed only builds while in motion!
Use CTRL to slide/dash with invincibility frames. Save slides for unavoidable attacks or boss abilities. The i-frames are crucial for maintaining your speed multiplier. Don't waste them!
If you take damage, immediately retreat and kite enemies at maximum distance. Your speed will rebuild over approximately 10 seconds of safe movement. Play ultra-defensive during recovery.
Turbo Skates converts up to 40% of your movement speed to attack speed. This creates a double-scaling effect: speed increases damage AND attack speed, making you an absolute powerhouse.
Fall damage does NOT affect your Speed Demon stacks - only enemy damage does! Feel free to jump off ledges and take fall damage without worrying about losing your precious speed accumulation.
Combine XP Tome + Cursed Tome + Luck Tome for optimal progression. This meta strategy maximizes your item acquisition, making it easier to stack multiple Turbo Socks and other key items.
One of the most rewarding and powerful builds in Megabonk - if you can handle the speed and master the mechanics. Remember: Turbo Socks, Agility Tome, and perfect dodging are your keys to success!
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