Spike or Stethacanthus is a Tier S shark. Spike is the first of the 4 "special sharks", along with Heidi ( Wobbegong ), Echo ( Ichthyosaur ) and Drago ( Pliosaur ) . Using it's poison spikes (hence the name 'Spike'), he stuns small edibles and fights off attackers when you boost. He is purple in color with stripes like the Tiger Shark.
Starting bite: 99
Max bite: 159
Starting health: 92
Max health: 106
Max speed: 176
Max boost: 231
Cost: 80 gems/8,000 coins (after unlock)
He can be unlocked with 80 gems, or for 8,000 coins and leveling all your S sharks to their max level.