Costume Quest 2 once again feature the stars of the original game Wren and Reynold, as they head out into their suburban neighbourhood for a spot of trick or treating. Costume Quest features an improved battle system over its predecessor as well as a host of new costumes. The costumes form the basis of Costume Quest 2's battle system, with different costumes providing different powers. For example if you dress up as a dragon you gain the ability to hurl fireballs.