Scaffolding: Prototype Review

 The prototype I made was a LoFi one made out of a box in order to get the general feel of fitting the circuit into a tight spot before cutting open a shoe for the final product. It still retains the general shape that would be used but it easier to move around the circuit and parts inside if adjustments need to be made the intended way to use it is to tilt left and right to move left and right like you would lifting your foot forward and backward, while lifting the controller completely to jump. This way, you would feel like you are more directly controlling Sonic's movement within the game. My two questions are: What is a good way to more compactly contain the circuit? and Is there a better location or implementation for the proximity sensor in order to get it to function more accurately?

Prototype Photo:

Prototype Circuit Photo:

Prototype Demonstration: