Aggressive characters can usually only be unlocked by defeating them in battle. For example, if the player is a Skeleton, other Skeletons will still put their hands up in an aggressive manner towards the player, while friendly characters will wave at your Skeleton. Taking the same form as an aggressive Character does not change that Character's attitude towards a player. They will not attack the player unless attacked first, or if the player gets too close, but they may attack other Characters in the world. Aggressive characters may approach the player's character and act aggressively by putting its hands up in a boxing manner.They may stop and stare at your character but that's about it. Neutral characters will neither approach nor flee, but do nothing aggressive if you approach.When approached, a friendly NPC may stop and wave or might even run up to your character, but does nothing aggressive unless attacked first. A regular NPC, which wanders around in the world.Pay attention to their attitudes to avoid unpleasant situations. Characters may behave in different ways when encountered in the world.If you do not have the required item at the moment, the Character will remain in place until the quest is completed. Once a single quest is completed, the Player is then able to discover the Character using the Discovery Tool and unlock them for a specific cost in Studs, either using the Discovery Tool or the Discovery Menu. Offering that Item to the Character will then unlock the Character for discovery and spawn some Studs, or other reward. You must either have the Item in your inventory, or summon the Creature, Object or Brick Build to the area highlighted in green around the quest-giving character. You can then initiate a dialog with the Character to discover what the Character wants, which is then shown in the bubble over their head until the quest is completed. Once found, a Character will pose a thought bubble above its head indicating a quest. Quest-type Characters have a required Item, Object, Creature or Brick Build that you must give them before they will be unlocked for discovery.Defeating a Character in combat will knock the character to the ground, stunned, allowing you to discover it, or allow you to interact with the stunned character to activate a required Quest to discover it.Other than the two characters that start unlocked, the Astronaut and Intergalactic Girl, unlocking Characters to be discovered requires either defeating them in combat or completing a quest (and sometimes both!).You can pick characters by clicking on the icon of the one you want in the Characters submenu of the Discovery Menu. Players may also take the form of any character they have purchased, or use the parts that make up those Characters in their own Custom Character designs.Characters spawned this way behave just like characters that were spawned randomly by the game but can be placed in any Biome. Players can spawn any Character you own in the game as an NPC by using the Characters submenu of the Discovery Menu.Characters will interact with the world around them, including fighting with or greeting other characters or even riding Creatures and Vehicles on their own. Characters are usually encountered in the World as randomly spawned wanderers in each Biome, or as static Quest-givers in certain areas, or even as a part of some Brick Builds. Characters (or NPC's /Non-Player Characters) are one type of Model appearing in the game which can be discovered, unlocked and then placed in the World by the player.

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