The Grind Mutant 2 is the sixth yo-yo in YoYoFactory's "Project Red Alert" series. Based on the G5, but with an extremely wide profile, it was colored magenta in tribute to the original Grind Mutant.
The yo-yo proved to be particularly difficult for YoYoFactory to produce, so only twenty-four pieces were ever made. Twelve of them were released to the public. Because of the challenges in manufacturing the yo-yo, ten Grind Mutant 2's had to be destroyed due to quality problems.
The number of Grind Mutant 2's successfully produced is exactly the same as that of the original Grind Mutant.