Megabonk Corrupted Sword Guide – Fastest Way to Unlock the Legendary Sword

By Richard Moore 10/07/2025

Megabonk features a variety of weapons and items that players can obtain. However, the Corrupted Sword is one of the best Legendary weapons in the game, dealing additional damage at low health, along with slicing in both directions. Unlocking it is tricky, as the requirement states that the Cursed Tome needs to be upgraded “to Level 20 in under 10 minutes.”

If you’re wondering how you can easily get your hands on the Legendary Corrupted Sword in Megabonk, then keep on reading below to find out the tricks.

The Conditions for Unlocking the Corrupted Sword Quickly in Megabonk

Unlocking the Corrupted Sword quickly in Megabonk means beginning a run with specific conditions to make your life easier. Here’s what you’ll need to pick:

Our picks are Monke or Tony McZoom as they’re both incredibly mobile while dealing significant amounts of damage. Tony travels on his hoverboard while Monke can jump extreme distances, so evading incoming damage from enemies won’t be a problem for them both. Begin the run on the Desert Map (Tier 1), and for Challenges, select Hyper

to double the XP and Gold gains.

Coming to the weapons that you’ll need for the run, Aura is a great pick as it deals impressive AoE damage. For the Tomes, you’ll need the XP Tome for increased XP Gains and the Cursed Tome for increased Difficulty (also a part of the requirement for unlocking the Corrupted Sword). Refund your Tome Slots and Weapon Slots before beginning the run to only carry the number of slots required.

How to Get the Cursed Tome to Level 20 Quickly to Unlock the Corrupted Sword?





With all the elements listed above, start the run and look for the XP Tome, Cursed Tome, and Aura. If you’ve found them, your next aim should be to upgrade Aura and Monke’s Bananarang, or Tony McZoom’s Wireless Dagger, for a few levels, then begin upgrading the XP Tome before you go onto the Cursed Tome.

Always choose the Green (Common) Cursed Tome and don’t select the higher rarity ones, as they significantly increase the Difficulty, and you don’t want that hassle when there’s a time limit. Getting to level 20 with the Common upgrades is much easier and less time-consuming, so that’s what you should do with the Cursed Tome.

Focus on Chests and Shrines, along with items/buffs that increase your Damage and Movement Speed. Apart from items that restore your HP, look for Magnets as they can pull unfathomable amounts of XP, helping you level up rapidly. Once you’ve leveled up the weapons to around Level 5, shift your undisturbed attention to the Cursed Tome.

Keep picking Green Cursed Tomes until it’s at Level 18 or 19, after which you can choose any of its rarity that comes up without worrying about the Difficulty boost. Just keep moving around to avoid enemies circling your position. Defeat the bosses that you encounter and don’t find the Boss Portal until the timer is down to 2 minutes.

Beat the boss within 20 seconds and then get all the XP that you can in around 1 minute and 30 seconds. The Cursed Tome should be at Level 20 by that time. This strategy will easily help you get the Cursed Tome to Level 20 in under 10 minutes, hence unlocking the Corrupted Sword at the end of the run and the achievement.

So, have you unlocked it yet? Share your thoughts and opinions in the comment section below.

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