winecfg tweaks are needed to get fullscreen to work properly.

This can be fixed by using winecfg to tweak the prefix. You uncheck both "Allow the window manager to decorate the windows" and "Allow the window manager to control the windows" in winecfg. Once that is done, the fullscreen works, the fullscreen window is undecorated, and the game is in its correct aspect ratio.

For gamepad support, you set the game to take keyboard input, and you use a gamepad to keyboard remapper (e.g. Antimicro).