- After completing the game, you’ll be able to reload the save to start again in New Game+ mode.
When entering the tower, you’ll be able to choose the difficulty level: E, D, C, B, A, S.
After completing S, you’ll be able to choose SS difficulty.
- Magic Cores from previous completions are retained.
This means that you can farm magic cores by continually reclearing the tower.
Which is useful for clearing higher levels. And Hidden Boss.
Weapons, chips, etc from the previous run are retained.
But, you’ll still lose weapons, chips in the usual way if you die.
Tower resets, and you lose discovered teleporters and rest points.
Challenge mode is a wave battle that takes place in a simple Arena.
Isn’t really hidden. It’s the knight you talk to at the end.
But you won’t be able to challenge him until you’re on Difficulty A.
There’s no trash area, just the boss fight (which takes place in the Arena)
Expect to farm a lot of magic cores to beat this guy. (Like hundreds of them.)