Thanks to you all!
Working thru this newbie tutorial..
https://www.scirra.com/tutorials/253/how-to-make-a-platform-game/page-6
Got to page 6, and there is no explanation of what a PlayerBox is or how its created.
So.. yes.. I'm brand new at this. Please take that into consideration if you answer.
Develop games in your browser. Powerful, performant & highly capable.
Exploring optoins for web based game programming.. Construct 2 is on my radar..