Complex sentence: Early on in the project, the idea of featuring staple Nintendo characters such as Link and Mario was considered; however, the aesthetic of the game, specially the extendable arms, clashed with them and it was eventually decided to make a new cast of characters.
Split into simpler sentences: Early on in the game's development, the idea of featuring staple Nintendo characters such as Link and Mario was considered. However, the aesthetic of the game, especially with the concept of extendable arms, clashed with them, and it was eventually decided to make a new cast of characters.