Classic snake game — eat food, grow longer, but don't bite your own tail. How long can you survive?
Swipe (or use arrow keys) to control the snake.
Eat the red food to grow longer and earn points.
If you hit the wall or your own body, game over.
The snake never really gets harder — your own body does. The single habit that extends a run is to travel in tight lanes and turn at the very edges of the board, leaving the centre open for when the food appears somewhere awkward. Players who wander through the middle quickly box themselves in once the tail grows past a dozen segments.
Once you are long, stop chasing food in a straight line and start thinking about where the tail will be two turns from now. A reliable pattern is to sweep the board in rows like mowing a lawn, so the tail trails neatly behind you and you almost never cross your own path. When food lands in a tight spot, it is usually safer to take the long way around than to dive in and trap your head.