If you are using NESmaker 4.5, keep it mind that is a "beta" version, the module that comes with it is empty... for the Summer Camp (series of tutorial videos that learn us how to use newsmaker, how to customize that basic module, ...
I'd suggest to not lose your mind trying to do things too difficult, and just have fun with it.
The definitive version of the 4.5 will be releases in a few weeks with all the complete modules. It might be easier (different) than the current one... and maybe the falling animation will already be implemented in the platform module (like it was in the 4.1.5).