Kritika Global can be accessed through the stage entrance portal located in each village.
In general, the difficulty levels of the stages are divided into Normal/Challenge/Skilled/Conquest.
The higher the difficulty, the stronger the monster's physical strength and attack power.
In the stage information, you can view things such as the appropriate level, available combat power, the number of stage sectors, gained play points, and major items that can be acquired.
You could also select the difficulty level and view the recommended combat power for each difficulty level.
Some Lv. 70 stages can be set to Mythic difficulty.
Mythic difficulty can be set from Lv. 1 to Lv. 10. The higher the difficulty, the stronger the monster's physical strength and attack power. But in return, there is a higher probability of gaining high-value reward items.
Also, the entrance screen may be different for special stages such as Parallel Labyrinth, Arena, and Daily.