The Immortal

The level codes:
Level 2 : 757FC10006F70
Level 3 : IA3D620000E10
Level 4 : D9B3531010EB0
Level 5 : B57F943000EB0
Level 6 : 563FF53010A41
Level 7 : C250F63010AC1
Level 8 : EO11F730178C1 (Information from Cheat Machine)