easy badges. Arrow Rain and healing spell and no need for item usage. Its kinda luck based when you want to open chest but beating enemies is enough too.
Well... And for the complaining ones: A medium rpg badge requires some time but at least for me its fast + you can check the botds of the whole week beforehand
the medium badge is just luck... you need to get blue equipment that raises your damage.
and the hard badge: its too easy after understanding how to become stronger.
 "GOSPACE"){kind=icon}
 "Toxers"){kind=icon}
 "Dangerous adventure"){kind=icon}
 "Tauriel Teaches Typing"){kind=icon}
 "Feudalism"){kind=icon}
 "The Dark One"){kind=icon}
 "Paladog"){kind=icon}
 "Toss the Turtle"){kind=icon}
 "You Have To Burn The Rope"){kind=icon}
 "Ultimate Crab Battle"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "UPGRADE COMPLETE!"){kind=icon}
 "Meat Boy"){kind=icon}
 "Epic War 4"){kind=icon}