One of the biggest and most annoying obstacles has to be the dots. Dots might stay stationary initially but will soon fly around the screen, forcing you to hastily avoid. These are just one of the many types of obstacles, and what's worse is when you will actually have to purposely run into things. Yep, flashing lines or cubes will change the colour of your snake, and sometimes these are purposely out of the way to trip you up. Avoiding them just might cost you the next stage.