2D game in which you have to navigate past moving obstacles with a boat until you got to a goal. Also when you press the enter key visibility should be reduced making it harder to navigate.
ant
java -jar "dist/Game.jar"
Mouse or Cursor keys
It uses friction, acceleration and angular momentum to make a reasonable model of movement. Also there is a sine wave super-imposed on the boats' movements to make them look more like they are on the sea.