GirrafeBro is the creator of the game, starting on Scratch to a more advanced game than the original Mario!
BoileyBoy has helped out a lot in Walo the Cat already, being one of the starter developers. However, over time, he is now one of the head music producers for Walo the Cat!
SuperAcesSonic deserves all of the credit he can get. He helped discover a lot about the game, helped it become a platformer and helped with the enemy scripting too.