Definitely a vast improvement, especially after three days straight of working on this SDK.
Not sure about the window size, as indicated by the gray borders. It was originally bigger, but I feel like I might prefer keeping this small, as the 2D oldschool Zelda games has this feel to them, what I mean is how the small screen-size added to the game's suspense, especially when you couldn't see much of your own field of view when in a dungeon.
Just one more thing to work on in terms of a set of core basic features, which is an inventory system. Already got it figured out in concept where in short, I'll be using a x,y,z array (name,damage or effect,if-obtained boolean) to store itemdata (such as "boomerang,stun,0") and icon management using instance variables as IDs and a multiple-framed animation to store icons.