Jonathan smiled. "Of course I know that. But I feel… we can win, because this is a defense-type mission, and we can upgrade defensive towers."
"Hm?!" Rover felt a little lost. He frowned and asked, "You mean…"
"Side missions are divided into many types and many different difficulty levels." Jonathan explained. "There are five difficulties: Normal, Hard, Challenge, Nightmare, and Hell."
"Although it doesn't show on the mission info, Survivors have summarized that there are three mission types. Type 1 is a puzzle mission. Once you enter, Survivors will have their abilities and power sealed. You can only use your intelligence to solve puzzles."
"Type 2 is a defense mission. Participating Survivors will be taken to a separate location. There, each Survivor will have their own room and their own scoring system to defend that room. Of course, Survivors can't leave the room, but everyone's abilities can still be used."
