prompt-fix.js

 const treasurehunt = {
      input_1: 'right',
      input_2: 'left',
      input_3: 'forward',
      input_4: 'back'
    };

    function game() {
      let user_input = prompt('enter a direction');

      if (user_input === treasurehunt.input_1) {
        return alert('Wasted!!!, you were killed by a bear, try again');
      }
      if (user_input === treasurehunt.input_2) {
        return alert('Wasted!!!, you were killed by a bear, try again');
      }
      if (user_input === treasurehunt.input_3) {
        return alert('you fell off a cliff, try again');
      }
      if (user_input === treasurehunt.input_4) {
        return alert('congratulations you found the treasurehun');
      }

      user_input = prompt('Wrong direction young man');
}
game();