Minor update

We have changed the disclaimer message at the start, it was meant to be a joke to highlight the obvious similarity to another video game character who is in the same profession but we did not really mean we hate plumbers in real life. We admit it was a bad joke and we took it down as soon as somebody mentioned it. The title is only directed to the fictional character in the game who is depicted in the story as the bad guy. We have also added a reminder that Option from the titlescreen can be accessed with T on keyboard and Select on gamepad. Another reminder is added at level 4 to tell the players that the timer to get 3 stars only starts the moment when you move. Those 3 and some improvements and optimizations. Thank you and have a great day.