Control snake and eat the required food while avoiding walls ( and yourself ). Your progress will be saved at the end of each level. You can retry as many times as you like.
Reset Game: To reset the game ( and your progress ), press and hold the button for 2 seconds. You can also press R on a keyboard.
Pause Game: Pause/Unpause an active game by clicking the button. You can also press Esc on a keyboard.
Control Snake: Click the upper/lower, or left/right, half of the touch panel + . Plan a move ahead, as this will allow for rapid direction change ( ie top left is BOTH up and left; it depends on snake's direction ). You can also use the ← ↑ ↓ → keys on a keyboard.
Start the game: When you're ready, click the button. You can also press N on a keyboard.