MegaBonk Proc Guide: How Proc Chance Works

Proc effects are one of the strongest ways to scale damage in MegaBonk. Many of the game’s best items and weapons rely on on-hit triggers, and knowing how to maximize them can make or break high-tier runs. If you’re trying to push endless swarms or Tier 3 bosses, understanding procs is key.

What is “Proc” in MegaBonk

A proc is any effect that activates when you land a hit. This includes poison, lightning, explosions, bonus projectiles, or any other special damage source. Each item has its own proc chance, which is rolled independently on every hit.

More hits mean more rolls, so weapons with high attack speed or multiple projectiles will naturally proc effects more often.

How Proc Chance Works

Proc chance is percentage based. For example, Moldy Cheese has a 40% chance to poison, and Spicy Meatball has a 25% chance to explode on kill. Each hit or trigger checks the chance separately.

Proc chances stack across different items. If you carry both Moldy Cheese and Lightning Orb, every attack can roll for both poison and lightning at once. Effects can overlap, leading to chain reactions.

Items like Overpowered Lamp increase your chance to trigger procs multiple times, effectively multiplying your damage output.

Best Proc Items

Core Proc Items

Moldy Cheese – 40% chance to poison enemies on hit
Lightning Orb – 25% chance to summon lightning and stun
Dragonfire – 15% chance to spawn fire that applies burn
Spicy Meatball – 25% chance to explode for AoE damage
Overpowered Lamp – +1 chance to roll for procs

Situational Proc Items

Bloody Cleaver – lifesteal procs can also apply Bloodmark
Slutty Cannon – spawns homing missiles on kills
Toxic Barrel – releases poison wave when damaged
Soul Harvester – spawns homing souls on kill

Tome and Weapon Synergy

High attack speed is the best way to boost proc value. Attack Speed Tome and Quantity Tome give more rolls per second, making every proc item stronger.

Weapons like Bone, Aura, and Revolver are especially good because they hit multiple enemies quickly, rolling proc checks constantly. Pairing Aegis or other defensive weapons with proc builds gives sustain while still stacking triggers.

Proc Build Strategy

Focus on stacking multiple proc-based items rather than just one. A single poison cloud helps, but poison plus fire plus lightning overwhelms mobs.

Always pick Overpowered Lamp if it appears, since it doubles down on your chances. Once you have 3 or more proc items, prioritize attack speed and projectile count over raw damage. The chain reactions will carry your runs.

Final Blurb

Proc builds in MegaBonk take ordinary attacks and turn them into screen-clearing chaos. The more you stack, the faster swarms melt, and bosses crumble under overlapping effects. Focus on attack speed, multiple projectiles, and stacking as many proc items as possible.

With the right setup, you won’t even see enemies before they explode.