Unlike Paper Mario, both Mario and Luigi have voices in the Mario & Luigi series and are voiced by Charles Martinet. According to the developers, the early games used character sprites; the developers were generally inexperienced and did not know much about hardware at the time. Once the Nintendo 3DS was released, the developers had the chance to switch to 3-dimensional graphics. They decided to change the background and world design but chose to keep the characters as 2D renderings of 3D characters as they believed it made it easier to convey comedic expressions. In 2013, they believed Mario took too much of the spotlight in the Mario franchise, and they made Luigi the more story-focused character in Mario & Luigi: Dream Team.
Unlike Paper Mario both Mario and Luigi have voices in the Mario & Luigi series and are voiced by Charles Martinet. According to the developers, the early games used character sprites; the developers were generally inexperienced and did not know much about hardware at the time. Once the Nintendo 3DS was relea,sed, the developers had the chance to switch to 3-dimensional graphics. They decided to change the background and world design but chose to keep the characters as 2D renderings of 3D characters as they believed it made it easier to convey comedic expressions. In 2013, they believed Mario took too much of the spotlight in the Mario franchise, and they made Luigi the more story-focused character in Mario & Luigi: Dream Team.