The developers decided that violence was against the spirit of Moomins, so they needed to find gameplay alternatives. They eventually settled on using Snufkin's music as a game mechanic
Moomin Characters Ltd, which owns the Moomin characters copyrights and is known for their strictness over it, watched over the game development closely, ensuring the portrayals met their standards. The was enthusiastic about the game throughout and requested only a few minor tweaks.
Originally the main protagonist was meant to be a Toffle, but this was changed to Snufkin, who was more popular and whose wanderer nature was better suited for a video game.