Step 1
Build an obstacle course in a tile map
First we'll set up the level. Go to the Game Properties sidebar (click on the cog) and change the World Size for Level 1 to 2500 x 500. This will make the level short and wide.
Our obstacle course will be made of tiles. Create a tile map (in the layers panel), and then draw your obstacle course using tiles from the Physics Pack.
Try to fill the whole level with tiles so that your character has a path to maneuvre through.