From the File Menu we selected Build...
OK, we're ready to test our progress, if everything's gone OK...this should happen.
Note that when the build is in progress, messages will appear in the blue Console window, these are useful to identify any bugs or missing scripts. Fortunately, everything has worked and so the Speccy emulator opens...and look...a game!....it even has a menu!...and when I press 1...the game starts!
And I can move the dog with the keys I selected...and I can jump through the green platforms...but not the walls.
OK...so it's probably the worst game ever...and it doesn't really do very much...but you did that!...and we still haven't needed to write any code yet.
Now, as you'll have seen when playing your amazing game, the play area is a square, and the score and lives info is on the right hand side. But it doesnt't need to be this way, we can put everything where we want, and increase (or decrease the size of the play area....which is what we'll do next.
Close the Speccy emulator window (you cant edit MPAGD when it is open) and in MPAGD, from the Editor menu select 'Window Size'....