These were the hardest FE2 maps at the time they got released/verified.

Thumbnail by Phoenix: https://youtube.com/@phoenix7404?si=v...
0:00 1:20 Lava Mines
1:21 2:19 Water Accident
2:20 3:53 Hyperspace
3:54 5:20 Hidden Base
5:21 7:21 The Real Challenge
7:24 9:26 Extravaganza
9:27 11:31 Hell Sanctuary
11:32 13:26 Mine Escape
13:28 15:26 The Deadly Challenge
15:27 17:31 A Laborious Journey
17:32 19:30 Startup Failure (Hell Version)
19:32 21:30 True Hellevan
21:32 23:35 Eternal Punishment
23:36 25:40 Inferno Empyrean
25:41 28:33 Asterios
28:34 30:32 roe v. wade
30:33 end RIGOR

All the videos i used is linked below:
Lava Mines (TheRealSuper):    • [FE2] Lava Mines (buffed)  coolman62...  
Hyperspace (noname8321):    • [FE2] Hyperspace by aspa102 (EXTREME ...  
Water Accident (ItzBlizzy):    • Video  
Hidden Base (noname8321):    • [FE2] (WITHOUT MAJOR SHORTCUT!) Hidde...  
The Real Challenge (noname8321):    • [FE2] The Real Challenge by suunytomb...  
Extravaganza (Dweb):    • FE2  Extravaganza  [Extreme Insane]...  
Hell Sanctuary (Clloy):    • Hell Sanctuary (Extreme Insane)  FE2...  
Mine Escape (evuuz):    • FE2 Map Test  Mine Escape  
The Deadly Challenge (Kaan2005):    • Roblox [Fe2 Map Test] The Deadly Chal...  
roe v. wade (Skitsuna):    • [HARDEST CRAZY] roe v. wade  FE2CM  
Rigor (Just_Somedude):    • (HARDEST CRAZY) {1st Victor} RIGOR [C...