Things You'll Need
Instructions
Log onto the Internet and direct the browser to the Lego Digital Designer website. Download the software for your operating system.
Open the software once downloaded and installed and open the "New Project" option. Enter in the brick colors you need to complete the Mario Baby; blue, yellow, green and red. Construct the Baby Mario via the online interface to make a set of usable instructions for building an actual Baby Mario.
Print out the directions from the template design software.
Lay out your needed Lego blocks and construct the baby Mario based on the instructions and design made with the Lego Digital Designer program.