GWN: "What Castle Crashers does is have The Simpsons arcade-esque gameplay with RPG elements. Players choose one of four (with more unlockable) characters, each with a unique magical ability, and level them up. Each level gives points to add to strength, defense, magic and agility (which is both movement and arrow-shooting speed).
The world is also filled with different weapons, each with magical qualities which enable them to add or subtract points to certain abilities. More powerful weapons have elemental powers, meaning one with ice may freeze enemies hit. On top of weapons, Animal Orbs, which also give players extra powers such as enhanced skills, finding secret items, regeneration and more, are to be found."