In Valkyrie Profile: Lenneth, a PSP conversion of the original PlayStation RPG, developers have taken an unconventional approach to hard modes. Unlike traditional difficulty progression, where enemies become stronger, this game flips the scaling on its head by altering gameplay elements.
The experience points you gain decrease with increasing difficulty, but the limitations on recruit and item acquisition are actually relaxed in Hard mode. In contrast, Easy mode is a streamlined experience that severely restricts access to new characters and certain items. These exclusive goods often grant significant advantages, making it easier to complete the game on its hardest setting.
This innovative approach to hard modes offers players a unique challenge experience.
Source: https://whatculture.com/gaming/10-video-game-hard-modes-that-made-games-easier?page=2