Here is the full list of all 25 Record of Lodoss War-Deedlit in Wonder Labyrinth- achievements.
(Acquire all weapons)
(Unlock all achievements)
(Achieve A Rank in Boss Rush)
(Achieve S Rank in Boss Rush)
(Achieve B Rank in Boss Rush)
(View the ending)
(Defeat Nihil)
(Discover all monsters)
(Fill in 100% of the map)
(Acquire all Spirit Magic)
(Defeat Karla)
(Defeat Ashram)
(Use Spirits to automatically increase your level)
(Defeat Beld)
(Defeat Pirotess)
(Defeat Narse)
(Defeat the Demon God)
(Defeat Flaus)
(Achieve S Rank at the Bow Training Area)
(Defeat Shooting Star)
(Bet all of your assets when gambling with Woodchuck)
(Defeat Djinn & Efreet)
(Attack Ghim)
(Defeat Abram)
(Start the game)