Dragon Warrior Monsters 2l (Tool) is a tool for the monster breeding mechanic in the game.
Demo: https://mitchhymel.github.io/dwm2l/
Credits to the following sources for monster info
https://gamefaqs.gamespot.com/gbc/525414-dragon-warrior-monsters-2-cobis-journey/faqs/19460
https://www.woodus.com/den/gallery/graphics/dwm2gbc/guide/Dragon_Warrior_Monsters_2.pdf