Yep, a excelent prototype in concept and core mechanic, perfectly aligned with the theme. Simplier than others, like “Menu Brake” or “Press AltF4 to jump” in the “pause menu mechanic”, but, becasuse of this, it´s far more organic, more ready-to-action, quicker, addictive. Using one key for pause and mouse to select next action makes it more dynamic.
Very short, it´s a pity you hadn’t more time to develop some more leveles and mechanics (combos of options in pause, for example), but it´s a good work, congrats!