This is a MARIO MAKER / LEVEL DESIGNER made with Unity and C#
This tutorial was made for Hector Pulido for his youtube channel
https://www.youtube.com/c/HectorAndresPulidoPalmar
And his Twitch Channel
https://www.twitch.tv/hector_pulido_
Open it on unity 2017.3 or greater, and play around with the project.