Needs work
Its a nice idea. And the beginning of a new series.
A view from above isnt the best way to control. And that will be all messed up. I suggest Platform shooting. That is more easy to control.
Also, the bullets goes way to slow. Make them go faster. Also, with the handgun, the slide goes backward, and a clip ejects. That would make it more realistic.
Still, you have 2 modes, and that is awesome.
Keep up the good work!