Introduction

In Monster Hunter 4 Ultimate, optimizing your Kinsect is a critical part of maximizing the effectiveness of your Insect Glaive. One of the most powerful Kinsects you can target is the Extract-Extender type, which grants Kinsect Attack & Stamina Up (L), Extract Efficacy Up (S), and Extract Extend & Affinity Up. This guide walks you through the precise nectar-feeding steps—often referred to as the “bug” method—to reliably achieve this form.
This method was originally shared in GameFAQs Q&A by Kreciuch saying “Someone on Reddit posted this. Seems accurate.”.

Step-by-Step Nectar Feeding Sequence

Follow these steps exactly, upgrading your Kinsect and selecting the “Top Option” (leading to the Extract-Extender bug) when prompted during evolution:

Level 1 (Base Kinsect)

• Feed 5 Power+ → Stats: 69 / 60 / 60
• Feed 3 Power+ → Stats: 69 / 60 / 60
• Level Up (evolve)

Level 2

• Feed 5 Power+ → Stats: 78 / 60 / 60
• Feed 3 Power+ → Stats: 87 / 60 / 60
• Level Up

Level 3

• Feed 3 Power+ → Stats: 96 / 60 / 60
• Feed 5 Speed+ → Stats: 96 / 60 / 69
• Upgrade Weapon choosing the top option (yields Kinsect Attack Up (S))

Level 4

• Feed 5 Speed+ → Stats: 96 / 60 / 78
• Level Up

Level 5

• Feed 5 Speed+ → Stats: 96 / 60 / 87
• Level Up

Level 6

• Feed 5 Speed+ → Stats: 96 / 60 / 96
• Upgrade Weapon selecting the top option (now grants Kinsect Attack Up (L))

Level 7

• Feed 5 Speed+ → Stats: 96 / 60 / 105
• Level Up

Level 8

• Feed 5 Speed+ → Stats: 96 / 60 / 114
• Level Up

Level 9

• Feed 9 Stamina+ → Stats: 96 / 78 / 114
• Level Up

Level 10

• Feed 9 Stamina+ → Stats: 96 / 96 / 114
• Upgrade Weapon selecting the second option—the critical juncture that yields the bugged variant: Kinsect Attack & Stamina Up (L), Extract Efficacy Up (S), Extract Extend & Affinity Up

Final Tweaks

• Feed Speed+ nectars until the Kinsect reaches 150 Speed
• Finish by feeding as much Power++ as your resources allow, optimizing overall power

Why This Works

• The order of nectars compensates for stat reductions from each type (Power+ lowers Speed, Speed+ lowers Stamina, Stamina+ lowers Power), ensuring that by the time of evolution thresholds, the Kinsect stats hit the required minimums.
• Selecting the second option at Level 10 is essential: it’s the point at which Extract-Extend and Affinity bonuses become available.
• After this, Speed+ to 150 maximizes the bug’s rapid extraction potential; Power++ adds additional damage output for completionists.

Summary Table