Is there any way to access all loaded modules of require.js?

Background:

I want to automatically call an init() function of my javascript-modules after all of them are loaded, see require.js + backbone.js: How to structure modules that have an initialize function?
Without require.js I looped over my own module-storage and called each init() function.

I now want to do this with require.js. I'm aware that calling a my_custom_init_function_favoritecolor_petname_love123 of every loaded module (including external libraries) is dangerous. I hope that this will cause less trouble than manually keeping a list of all modules (and the requirements of these modules) up-to-date. Forgetting one module init() is much more likely than a third-party library having my custom function name (though the latter is probably harder to debug).

Or does anyone have a better idea of how to accomplish that?