The idea is to rapid-prototype the game in "Construct 2" (which I love so much) and the instead of throwing away, start to make the game complex (which will be incrementally be tougher to do in event sheet) with proper programming codes.
Events cannot be translated in to any remotely useful code that you'd want to read or use. So you really are better off rewriting it from scratch in other tools (but of course it will take you a lot longer!)
I'm yet to play around with FireBug for this. But before doing this, is there any recommended option to take the JS/JQuery code to manually edit rather than through "Construct 2", after the game prototyping reached to a defined state?