Kobo II is a fast paced physics based dual stick arena shooter that intends to bring the frantic retro arcade gameplay of the prequel Kobo Deluxe to old and new players alike, while offering a much smoother and more sophisticated experience.
The usual configuration dialog stuff, using a custom windowed GUI toolkit over OpenGL. Dialogs are normally placed on a GUI overlay that can be toggled with the ESC key, so you can keep them open and just hide the overlay when playing. The "System" page is only enabled in registered copies, BTW.