Your Corona ® needs a Lime.
Lime is a Lua library created for the Corona ® SDK which allows you as a game developer to easily include tile maps created in Tiled within your game.
Not only can Tiled be used as a level editor you can also use its simple yet flexible Property features to allow a level designer to set up all kinds of game logic without the need for a programmer to change any code thus allowing easier gameplay tweaking.
Lime image sourced from here. RPG Tileset sourced from here.
Features
Easily load maps
Create your map in Tiled and have it running in your game in just three lines of code.
Very fast
No matter how big or complicated your map is, Lime will always allow for a consistently high framerate in your game. Please note, currently there are performance issues on hardware which Ansca and myself are looking into.
Simple physics
With your physical world prepared in Tiled and loaded in Corona you only need one more line of code to get it all built.
Camera control
Smoothly slide to different locations, track objects or instantly jump to another area as easily as writing this sentence.
Nearly limitless potential
By taking advantage of the Property features of Tiled you will be able to create nearly any game type imaginable. You just bring the ideas.
Make games faster
By seperating out the map creation you will be able to delegate that job to a level designer and spend more time on gameplay.