Point where you want to go (mouse or finger), or turn with the arrow keys. Gobble the glowing pellets to grow. Hold Space, the mouse button or BOOST to zoom. If your head bumps another snake you pop, so cut them off instead!
Every pellet you eat goes in the bank, even if you pop. Spend them on new looks.
Mouse: point to steer, hold the button to boost. Keyboard: arrow keys or A and D to turn, Space to boost. iPad: drag your finger where you want to go and hold BOOST. Boosting makes you shrink a little and drop pellets behind you. Your best length goes on the leaderboard, and growing long or topping the arena earns PhatCoin.