Explore, Collect, Battle!
Play as Wren or Reynold, in this adventure/role-playing game that unfolds on Halloween night across seemingly peaceful suburban neighborhoods, monster-infested shopping mall and mysterious carnival. Go door-to-door collecting candy, points, cards, battle stamps and quest assignments to prepare for combat. Use your wit, bravery and home-made costumes with superpowers to rid the neighborhood of creepy monsters and SAVE HALLOWEEN!
 Game Play
The game Costume Quest incorporates elements of exploration of adventure games, and the character growth of a role-playing video game. The adventure part of the game, is the player exploring through their neighborhood, seeking out quests through trick or treating that reward you with hints to the sibling's location, more candy (which is a type of currency you use to buy things from other people), and costume pieces that can be used to alter/create a new costume for the characters.
Just like RPG games, sometimes you will encounter random monsters, which leads to the battle mode for the game. In the battle, you become giant versions of whatever costumes you have the characters wearing, along with the abilities incorporated with the costume. Example, a child wearing the robot costume becomes a giant futuristic looking robot, while another child who is wearing the black cat costume will become a giant black cat in battle. The battles are turn-based, which allows you to select attacks, blocking, or a special move that of course requires you to hit a quick time event at the right moment to achieve the maximum damage. Also, lastly winning the battles can lead to additional rewards towards the play's main quest.