Master Zik is the third boss of Sonic Lost World, serving as the recurring boss of Tropical Coast.
Coming out of semi-retirement, Master Zik first engages Sonic at the end of Tropical Coast Zone 2, where he will roll around on a giant apple and attempt to crush the hedgehog. Periodically, he will stop rolling on the apple and launch numerous spike balls in different directions. As long as Zik stands atop the apple, he cannot be reached by any of Sonic's attacks, so the player must lure Zik to a juicer somewhere on the planetoid. Once the apple is gone, the player must jump into the juice geyser and chase Zik to the next planetoid, where he will then run around and shoot energy orbs at Sonic. The player must then avoid his attacks and hit him enough times to clear the Zone.
This battle is repeated in Nightmare Zone, with Zik's apple being replaced by the second-level Nightmaren Gulpo. To defeat him, Sonic simply has to lure him into a portal located somewhere on the planetoid.
Master Zik is fought again at the end of Tropical Coast Zone 4. This time, he will telekinetically surround himself in a spinning ring of fruit that can be targeted by the Homing Attack. The best way to attack Zik is to lock onto numerous fruit and onto Zik as well. Once he's taken enough damage, he'll retreat to another planetoid, and the player must chase after him using the Orange Rocket Color Power. On the next planetoid, he will summon two rings of fruit to make things harder for the player. After attacking him enough, he'll retreat to a third planetoid where he will run away and shoot energy orbs at Sonic again. From there on, just keep whaling on him until the battle ends.
Master Zik shows up after Zazz and Zomom in Lava Mountain Zone 1 to get his revenge on Sonic. Upon landing on the planetoid via a volcanic rock, the elderly Zeti will employ the same strategy of his previous fights, which involves running away from Sonic and attacking with a barrage of energy orbs. When hit enough times, Zik will become more aggressive. Keep hitting him, and he will go down and disappear in a puff of smoke.