Zombot Sphinx-inator

Zombot Sphinx-inator is the boss of Ancient Egypt in Plants vs. Zombies 2: It's About Time controlled by Dr. Zomboss, and is battled in Ancient Egypt - Day 25. It can send out all zombies from Ancient Egypt, except the Flag Mummy Zombie, Ra Zombie, and Camel Zombies. It takes up a two-by-two area at the right side of the lawn, and jumps into different rows occasionally. It can only send out zombies in two rows at a time, but it can only be attacked in the two rows it occupies at any one time. Unlike the original Zombot, the Sphinx-inator can be attacked at all times.

Almanac entry
TOUGHNESS: Undying

SPEED: Hungry

The destroyer of plants from the ancient sands.

Special: missile attack can create tombstones

To add that extra bit of wickedness to the Sphinx-inator Dr. Zomboss chiseled his creation from the stonework of cursed tombs. You should not take this instance of reuse and recycle to mean he's going green. The only thing green about him is his tongue.

Overview
The Zombot Sphinx-inator has an estimated absorption of 925 normal damage shots. Its appearance changes at 308 normal damage shots and 617 normal damage shots before dying at 925 normal damage shots.

Attacks
The Zombot Sphinx-inator randomly performs one of the following actions:
 * Warps in zombies:
 * First phase:
 * Mummy Zombie
 * Conehead Mummy
 * Buckethead Mummy
 * Tomb Raiser Zombie
 * Second phase:
 * Conehead Mummy
 * Buckethead Mummy
 * Imp Mummy
 * Mummified Gargantuar
 * Third phase:
 * Conehead Mummy
 * Buckethead Mummy
 * Explorer Zombie
 * Tomb Raiser Zombie
 * Pharaoh Zombie
 * A target will appear on a random space and the Sphinx-inator will shoot a missile at that space, destroying any plant on it, attempting to create two tombstones in an adjacent tile.
 * The Sphinx-inator will tap its front two legs on the ground, step back, and then charge forwards, destroying all plants and zombies in two rows. It will then stop short of the lawn mowers, and jump back to the rightmost column.
 * It is possible to stun it with the Plant Food effects of Repeaters, Bloomerangs, Bonk Choys or Cabbage-pults when it uses this attack, preventing the attack from destroying two whole rows.
 * It is also possible to do this by making it hit an armored Wall-nut, but the Zombot Sphinx-inator will not be damaged when this occurs.

Strategies

 * See Ancient Egypt - Day 25.

Trivia

 * Its almanac entry says the only thing green about Dr. Zomboss is his tongue, which is incorrect because his body is green, and if one looks closely, his tongue is in a normal pinkish hue.
 * This fight was added in the 1.9 update for Plants vs. Zombies 2: It's About Time.
 * Before the fight, Dr. Zomboss suspected Crazy Dave as a brain-eater like them because he thinks the meat inside Crazy Dave's taco was brain meat.
 * When Zombot Sphinx-inator is defeated, the player is awarded the Ancient Egypt Trophy. Also, after receieving the trophy, Crazy Dave pops out and confirmed there was no meat inside the taco. Dr. Zomboss says " Well, that just leaves more brain for us later" and claimed he will return for a real pay-back. He then teleports away with what's left of Zombot Sphinx-inator.
 * When the Zombot Sphinx-inator is frozen and about to shoot a missile, it will be blue, but when it comes back from the top, it is no longer frozen.
 * Before the 2.3 update, if an Iceberg Lettuce was hit with a missile, the Iceberg Lettuce would somehow freeze the Zombot Sphinx-inator.
 * The missiles launch Tomb Raiser Zombie's bones on impact.
 * In the Chinese version of Plants vs. Zombies 2: It's About Time, battling this Zombot can have the following:
 * A conveyor-belt manner which is the typical type;
 * A Last Stand without the aid of sun-producing plants;
 * And lastly, a Last Stand manner with the aid of sun-producing plants but the Zombot Sphinx-inator will have three phases of health.