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These can be found by mining rocks or cutting trees in the open-world maps, generated automatically by attacking Kemono or using a mechanic called the “Hunter’s Arm”. However, building Karakuri requires you to gather a resource called the Celestial Thread. The Shield Wall Fusion Karakuri can block any attack and even send charging Kemono flying backwards. For instance, you can build Karakuri crates immediately after swinging your weapon to protect yourself from an incoming attack, then run up those crates and jump off them to perform a devastating aerial attack while the Kemono are reeling from hitting the crates. The craziest part of Karakuri is that you can build them whilst in the middle of performing attacks and the weapons even have special moves when interacting with them.
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Other Karakuri devices include torches that set your weapon on fire, springboards to launch you forward across gaps or away from enemy attacks, ballistae to shoot down airborne Kemono, projectile stakes that launch into a Kemono and transform into platforms you can jump on, and more.
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For instance, you can build Basic Karakuri, like crates that stack on top of each other which you can use to jump over enemies or as a shield to deflect attacks. The Karakuri is a mysterious form of technology which grants you the ability to construct almost any structure literally from nowhere.
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Mastering the technologically-advanced Karakuri is essential to defeating the Kemono. While you can stick to using one weapon that piques your interest, Wild Hearts encourages you to experiment with all of them as some weapons are tailor-made to tackle some Kemono better than others. Every weapon type features complex move-sets, gimmicks, and playstyles to learn. Wild Hearts starts you with five unique types of weapons and you unlock three more as you progress through the main campaign. To help you dispatch your quarry, you have a wide array of weapons and gadgets at your disposal. If you fail to kill the target within the time limit or lose all extra lives, it's game over and you must start the mission all over again. Each mission requires you to explore a large hunting ground to slay a specified Kemono within a time limit and you have a set number of extra lives to work with. The gameplay structure of Wild Hearts is chapter-based, each containing a set of missions where you are tasked to tackle the Kemono terrorizing the many regions of Azuma. The Bow is a fast, ranged weapon that pepper Kemono with arrows while keep you mobile.
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