It is pygame code with movement, collision procedurely generated collision's already seted up so you can focous on other things like level building and etc. It's as simple as that.
By changing the paremeters like speed, character size,screen size and etc get the movement. procedurely generated collectables have been implemented so that you can use them if you want.
although pygame is easy it takes a learning curve to actually properly understand it, I always wanted to have a basic movement setup so that I can play around with what else I cand do,