Jetstream evolution recipe

Answer: Requirements to evolve Khukuri into Jetstream

Weapon level alone is not enough. Trigger Moonfall Slash at least once during the same run.

Steps

1. Obtain Khukuri and raise it to level 8.
2. Keep Parm Aegis in your inventory during the same run.
3. Trigger the Moonfall Slash Glimmer with Khukuri at least once during the same run.
4. Open an eligible chest after every requirement is complete.

If it does not evolve

• Confirm that Khukuri is level 8.
• Confirm that Parm Aegis is in your inventory.
• Confirm that Moonfall Slash triggered during the same run.
• Open an eligible chest only after every requirement is complete.

For a two-stage evolution chain, the first and second evolution each require a separate eligible chest.

Next guides

• Final 11 Emerald Diorama evolutions
• Emerald Diorama progression guide

Sources

• Vampire Survivors Wiki: Evolution
• Vampire Survivors Wiki: Glimmers

Sources rechecked: October 24, 2026.