Microsoft today took another shot at rival Google, the target of its "Scroggled" campaign, with an April Fools' Day prank that turned its Bing search engine into a Google look-alike.

Dubbed "Bing Basic" in an April 1 blog post, and claiming it was a special test, the prank kicks off "if you visit bing.com and enter a certain telltale query" that then results in "something a little more bland."

From Bing.com, users simply enter "Google" to see a temporary home page that looks very much like Google's noted minimalist design.

"We decided to go back to basics, to the dawn of the Internet, to reimagine Bing with more of a 1997, dial-up sensibility in mind," wrote Michael Kroll, principal UX (user experience) manager for Bing, on the blog. "We may see some uptick in our numbers based on this test, but the main goal here is just to learn more about how our world would look if we hadn't evolved."

SearchEngineLand first reported on the "Google" trigger for the Bing Basic hoax.

The revamped Bing Basic screen sports a few differences from Google's real home page, including a renaming of the latter's "I'm Feeling Lucky" button to "I'm Feeling Confused." Clicking on that button in Bing's imitation leads to Kroll's blog post.

Microsoft has retained Bing's hover-links, however, and used them to take additional shots at the competition. Hovering the mouse over one such link displays a pop-up that states, "When there's nothing else to look at ... You may take drastic measures." Clicking directs the user to a search for "watching paint dry."

Google's counter -- launched earlier in the day -- was both more elaborate and more subtle as it spoofed Microsoft's Outlook.com email service, the rebrand of Hotmail.com that debuted last July.

Called "Gmail Blue," the phony is purportedly a major refresh of Google's own email service that "Richard Pargo," supposedly a project manager, says was based on the question, "How do we completely redesign and recreate something while keeping it exactly the same?"

The result? Gmail Blue, with blue fonts, blue lines, blue theme, blue everything.

"It's Gmail, only bluer," said Pargo with a straight face in a production-quality video that included a cameo by Blue Man Group.

"We tried orange, brown ... brown was a disaster," said "Dana Popliger," a faux lead designer. "We tried yellow."

Computerworld