When a Cherry Bomb, Jalapeno, Doom-shroom, Squash, or Potato Mine try to instant kill it, its head will not have any degrades, despite losing 1800 health.
Even though freezing Peashooter Zombies with Ice-shrooms or butter prevents them from shooting peas, slowing them down with Snow Peas, Winter Melons, or the residue left behind by Ice-shrooms do not hamper that ability.
Apparently, the zombies' instant kills are stronger than that of the plants' instant kills, since the Squash Zombie can kill the Tall-nut in one hit while the Squash requires two hits to kill the Tall-nut Zombie. However, the Jalapeno and the Jalapeno Zombie are exceptions, since they can kill themselves in only one hit.
In the iPad version, the Gatling Pea Zombie's head looks like it is floating off the body, with a stem supporting the head.
This may be because the developers may have put a normal zombie in the icon, and thus they replaced the image of the zombie's head with a Gatling Pea.
In the icon for the iPad version, it shows a Jalapeno Zombie and a Gatling Pea Zombie at night, even though the mini-game takes place in the Pool.
According to LawnStrings, this mini-game's original name was going to be "War and Peas 2", with "War and Peas" mostly likely being a pun on "War and Peace."
Also, a box with the words "War and Peas" is visible in Crazy Dave's Twiddydinkies.
In the iPhone and Android icons for this mini-game, it has Gatling Pea Zombie instead of Peashooter Zombie on it.
However, the Gatling Pea Zombie's head is, as stated earlier, floats off the body with a visible stem. It also has no eyebrows.
There is a glitch that upon restarting many times, there is a chance that Jalapeno Zombies will not appear. There is also a similar glitch in Buttered Popcorn where Gargantuars will not appear if the level is restarted many times.