I implemented sprite flipping in the level editor and game engine. The image above shows flipping on hill. Those are both the same sprite.
I also built the first level of Super Mario Bros. There is a toad there because the story takes place after Mario beats Bowser, so he has freed the toads.
Speaking of that… does anyone have any ideas for how the first level would be different after Mario has beaten Bowser? So far I just have toads hanging around that you can talk to, there are no enemies, and some of the bricks and item blocks have already been hit. I was wondering if there could be anything else different to make it more interesting to go through the level. It’s important for the story that the player goes through the whole level.