you can only move to one place

This game is a Jam, it is in development during the jam, there will be 3 worlds 1-World Blue, Green colony, Red castle, and there will be 1 boss in each world, you are a rectangle that can only move to the right and you find some powers that can make you turn right or left (but only one button to move it which is the right arrow) and also a jump PowerUp where it makes the rectangle jump! You have to get boxes to put on a button thus opening the door to pass to the next level.