"Your local campus has been infected by the Zombie Virus!!! Every one is infected!!! Will you run or will you fight to eliminate all the Zombies... You have the control over the Zombie shooting tower that your supporters have made you. Starting with a single bow and arrow start eliminating the Zombies. As you progress, you can buy Grenades, Gun or even upgrade your bow to shoot double or triple arrow at a time!"
The application had been available for 99 cents in Apple's App store before it was pulled by Apple.
Apple, which didn't immediately respond to ABCNews.com' requests for comment, has not explained why it pulled "Zombie School" from its store.
But the application's thorny subject matter presumably had something to do with it. In an email to ABCNews.com, the developers of "Zombie School" acknowledged the sensitive nature of their application but contested the notion that it was in bad taste.
"We fully agree that violence should be kept out of school but the game never was intended to invoke this concept," the developers wrote.
The developers argue that Apple excised the application not out of concern for its message but out of fear of a public backlash. As proof, they cite the fact that "Zombie School" had been approved for more than a week and that it was only removed after tech blogs began covering it.
"They (Apple) approved it and the game went on sale on July 12th 2009," the developers wrote. "This shows that neither us or Apple, clearly, thought that this game would be related to school violence."
Retarded Apps, though, despite their current stance, indicated it would demonstrate extra caution with future projects.
"Because of this controversy, we will now make sure that our future games are miles away from anyone relating it to serious problems like school violence," they said.
In late June, Macenstein, a blog on all things Apple, wrote, "Today, the iTunes app store became a man." The tech site CNET took another tack: "Apple goes topless," it declared.
But it looks as if Apple's affair with X-rated content wasn't meant to last.
Developer Allen Leung had proudly told Macenstein, "We uploaded nude topless pics today. This is the first app to have nudity."
Leunge may have made one boast too many. The application, "Hottest Girls," which had been available to users of the iPhone and iPod Touch, was soon pulled from the store.
"Apple will not distribute applications that contain inappropriate content, such as pornography," Apple spokesman Tom Neumayr said. "The developer of this application added inappropriate content directly from their server after the application had been approved and distributed, and after the developer had subsequently been asked to remove some offensive content.
"This was a direct violation of the terms of the iPhone Developer Program. The application is no longer available on the App Store."
The application previously displayed photos of women in lingerie and bikinis. But earlier this week -- about a week after Apple unveiled a new operating system that includes parental controls that could filter out explicit content -- the developers took off what was left of the clothes and turned up the heat on their product's content.