Posted on 19 April 19 at 23:55TLDR: Use a double Penetrator X Dragon Whisker with max strength and three weapons that boost both strength and MP. It is convenient—but not necessary—to have 100% shot resistance. Immune and Curaga are not required nor are any other resistances.The majority of Kenny’s attacks are one shot kills. That means vitality is superfluous. Your characters can die just about as easily with 3,000 vitality as they can with 300 vitality. Kenny is virtually immune to magic. Your best option, therefore, is a max strength build ignoring all other attributes.The only exception is shot resistance. Your character is invulnerable to Kenny’s machine gun with 100% shot resistance. However, Kenny’s machine gun is one of his least powerful attacks and is easily avoided. Nevertheless, one gets a certain satisfaction by being able to bash Kenny mercilessly while his machine gun is out. So, I, personally, like the 100% shot resistance.The key weapon I recommend is a max strength Dragon Whisker with the Penetrator X ability added in the open slot. It will thus have a double Penetrator X ability. Each Penetrator X reduces Kenny’s robust defense by 50%. The two, together, reduces his defenses to zero. Any double Penetrator X Dragon Whisker with strength over 700 should be fine.A Dragon Whisker with strength between 600 and 700 is adequate but not ideal. If you do not have a double Penetrator X with strength over 600, I recommend acquiring such a weapon. This is my recommended build with a 30% Cid Crafting boost:Starting with a level one Corcesca:Apply 1 Behemoth Tears and keep the Penetrator X ability throughout the entire buildAdd 1 Dragon Horn, 1 Laser Sensor, and 2 Curved HollowhornsThe Corcesca evolves into the Harpoon.Add 2 Meteorites, 5 laser sensors, 3 laser sensors, and 8 Curved HollowhornsNote: The laser sensors are applied in a group of 5 and a group of 3 to maximize the benefit of the positive decimals and minimize the detriment of the negative decimals.The Harpoon evolves into the Dragon WhiskerAdd 6 Curved Hollowhorns, 1 Behemoth Hexhorn, and 1 Strength Gemstone. The strength gemstone must be the last item applied otherwise the weapon will max out before you can incorporate it into the build.Result: Double Penetrator X Dragon Whisker – Srength: 729, Vitality 125, Magic -7, Spirit: 34Your remaining three weapons should be high strength weapons preferably with bonus MP. I like the Battle Mace that evolves into the Scharnhorst. It is an inexpensive purchase from Meldacio and provides 30 bonus MP. It is an easy build. Assuming the 30% Cid Crafting Boost, I like to start out with 5 Octolegs. These provide just over the 30 vitality and 30 spirit required for the first stage of the build. I then add Curved Hollowhorns until the weapon evolves into the Behemoth Masher and continue to add Curved Hollowhorns until it evolves into the Scharnhorst. At that point, I add 4 Meteorites to increase the max level to 120 and continue adding Curved Hollowhorns until the weapons’s level is just below 120. I add some low experience strength materials (like Garula tusk, sharp bone, etc.) to get the weapon’s level as close to 120 without hitting it. I conclude by adding a Strength gemstone. Final strength should be around 728.On one of the Scharnhorsts, I add 11 Sturdy Plates right after the meteorites. This provides me with 100% shot resistance. The rest of the build is the same. With fewer Curved Hollowhorns because of the Sturdy Plate, the final strength is around 684. If you follow these builds, your weapons will provide 2869 strength. With the base strength of your character that will vary depending on birthplace and level, your total strength should be over 2900. Or close to it if you have a very low level low MP birthplace character.With around 2900 strength, you will be inflicting damage at the 9,999 HP cap with the Fierce Sigil’s Rockbreaker. The finisher of the Fierce Sigil’s Pummel will also be at the 9,999 HP cap. To defeat Kenny, all you need to do is stay behind his field of vision evading his attacks. Between attacks, Kenny will rest for a few seconds. Use the Fierce sigil’s Rockbreaker and Pummel martial arts abilities to inflict great amounts of damage.If you are patient, you can stay out of danger while administering massive punishment. Using these tactics, a normal fight where Kenny does not heal, lasts about 7 minutes give or take. If Kenny uses his impressive healing abilities, the fight might take longer—in the 9 minute range give or take. In other words, be methodical. Do not expose yourself to risk, but take every opportunity to hit Kenny hard during his respites. If you prolong the fight, Kenny may heal himself completely undoing your hard work.