For the most part the criteria points to earn Devil Hunter rank is same for all difficulties except Dante Must Die which is less than Normal.
===== Time and Orbs Requirements per Mission =====
Time 6:00 Orbs 400
Time 7:00 Orbs 450
Time 3:00 Orbs 550
Time 4:00 Orbs 550
Time 2:00 Orbs 100
Time 3:30 Orbs 250
Time 3:00 Orbs 650
Time 3:00 Orbs 585
Time 8:00 Orbs 1,500
Time 4:30 Orbs 600
Time 5:30 Orbs 1,000
Time 4:00 Orbs 700
Time 2:30 Orbs 200
Time 5:00 Orbs 500
Time 10:00 Orbs 400
Time 6:00 Orbs 400
Time 7:00 Orbs 400
Time 6:00 Orbs 900
Time 3:30 Orbs 500
Time 4:30 Orbs 700
Time 5:00 Orbs 700
Time 8:00 Orbs 0
Time 7:00 Orbs 600
===== Evaluation points =====
The grade you get has a lot of factors. Your goal is to clear mission in a short time and optimize usage of your items to not lose certain bonus or a rank. These evaluation points do not apply when you are in intermission [(DMC Official Guide (2001): Tankobon Hardcover. Chapter 3, Mission Guide; p. 126 - 138.)]. Like at the start of game for example.\\
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Refer to the mission required times and orbs for the highest points.
Conditions for obtaining special bonus (2,000 Orbs)
A total of 1,500 or more evaluation points. This also includes bonus points for successful secret missions
Clear Time
Target Times
Points
Within the prescribed time
500
+1s ～ +30s
300
+31s ～ +2m
200
+2:01 ～ +5m
100
More than 5m
0
Red Orbs
Amount of Orbs
Points
More than 100%
500
80% ～ 99%
300
50% ～ 79%
200
30% ～ 49%
100
0% ～ 29%
0
Damage taken
Amount of total damage
Points
0
500
1 ～ 500
300
501 ～ 1000
200
1001 ～ 1500
100
More than 1501
0
Item Usage
Item Name
Points
Devil Star
-100
Holy Water
-100
Vital Star
-300
Yellow Orb
-300
Untouchable
-500
If you clear the secret mission. At the end of the ongoing mission. You will get Bonus points
