★ Monster Hunter Rise and its expansion MHRise: Sunbreak is out now for the Nintendo Switch & PC, then for PlayStation, XBox, & Game Pass on January 20, 2023!
Head on over to our MHRise Wiki for the latest guides and strategies about all things MHRise!
This is a guide for RE: Return of the Bioweapon, a Quest appearing in Monster Hunter World (MHW). Learn about RE: Return of the Bioweapon's availability, unlock conditions, target Monsters, and rewards for completing the Quest here.
| Available from the Event start time |
| Lv | M★5 | Destination | Rotten Vale |
|---|---|---|---|
| Type | Event | Research Points | - |
| Time Limit | 50 minutes | Reward Money | 36000z |
| Objective | Slay a Blackveil Vaal Hazak | ||
| Other Conditions | Reach MR20 | ||
Instead of giving you Effluvial Buildup, Blackveil Vaal Hazak will give you the Zombified status, making the Effluvia Resistance skill useless.
The Zombified status will make you slower and unable to heal with normal healing items, but you do regenerate health passively. Cure yourself through green herbs and red herbs!
Blackveil Vaal Hazak Weakness and Strategy Guide
You can get the Leon α+ and Claire α+ armor sets, both of which have Zombie & Effluvia Res. Useful if you want to do the quest again and again, or if you just want to beat up a normal Blackveil Vaal Hazak in style.
You can get flashy pendants that either represent the R.P.D., the Umbrella Corporation, or a random tofu.
If you ever wanted to get the zombie look without carrying the effects of being zombified, this gesture has got you covered.
Ever seen a gesture that can do damage to monster before? Well, now you have. It does even more damage if you are zombified.
Match your room with the Raccoon Police Station. Your item box's look is changed to match the one in the Resident Evil 2 game, and you can even have a typewriter that you can save your game in.
Additionally, you will also get extra content for your guild card, such as a background, two poses, an expression, and five titles.
| Item | Appearance Rate |
|---|---|
| Pure Dragon Blood | % |
| Heavy Armor Sphere | % |
| Ancient Feystone | % |
| Vaal Hazak Cortex | % |
| Shadowpierce Fang | % |
| Deceased Shard | % |
| Vaal Hazak Fellwing | % |
| Vaal Hazak Flail | % |
| S.T.A.R.S. Badge | % |
| Vaal Hazak Cortex | Vaal Hazak Hardclaw |
| Shadowpierce Fang | Large Elder Dragon Gem |
| Deceased Shard | Vaal Hazak Fellwing |
| Vaal Hazak Flail |
| Iceborne | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
 Assigned Quests |
 Optional Quests |
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| Low/High Rank | |||||||||||
 Assigned Quests |
 Optional Quests |
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| Event Quests | |||||||||||
 Iceborne Events |
 Low / High Rank Events |
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| Other Quest Categories | |||||||||||
| Arch-Tempered Quests | Collaboration Quests | Gold Crown Quests | |||||||||
| Arena Quests | Challenge Quests | Investigation Quests | |||||||||
| How to Unlock All Quests | |||||||||||
| Low/High Rank | Master Rank | ||||||||||
RE: Return of the Bioweapon Quest and Rewards
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