The best way I found to get quick snake kills is to go level 2 of the main game and then press
and then repeat that over and over again.
For those past level 2 simply press
+
to reset your game data.
For those not yet at level 2 simply move your character around on level 1 to where your character is touching each of the 3 chests and that will beat level 1 for you. :)