When I installed the app, that was where the joysticks appeared by default. And yes, the screen is upside down. That was also the default. You can change the screen orientation and the joystick placement, but I didn't think to do so at first.
If you try to keep your left thumb on the yellow joystick, you inevitably grab the edge of the tablet with your hand. This means that your palm will be resting on top of the 3 standard Android menu buttons, which causes all sorts of bugs.
This design flaw slipped by me at first because I thought the app was simply buggy. It is buggy, but most of the problems came from where the controls were placed.
The reason I posted about this app was that I wanted to get you thinking about the apps you use. This was a very basic game and yet the developer still managed to muck up the interface. I'm hoping that this will inspire you to think about the apps you have trouble using. Perhaps it's not you; it could be a clunky interface design.