The studio executive explained that the sequel is in development as a Wii U-exclusive because a strong creative partner was needed for the venture.
"Would Bayonetta 2 not exist without Nintendo? The answer is yes," Inaba told The Verge at the Tokyo Game Show 2012.
"We are not viewing this as a change of platform, we were looking for a partner to create Bayonetta 2 and Nintendo was a strong, cooperative partner that was willing to create and grow Bayonetta 2 together. As a result, the platform became the Wii U."
Inab went on to say that fans should not be concerned about the change of platform radically altering the core gameplay, as all Platinum Games' titles are developed using PCs.
"We create the basic framework of our games on the PC, so even though the hardware changes it doesn't influence the creation of our games," he added. "We've already developed our own engine to work with multiple platforms.
"Because of the Wii U GamePad, we are putting extra thought into how to use these differentiating features. There's a difference in the game design side, but we are enjoying the challenges of creating games for new hardware."
Bayonetta 2 was announced as a Wii U-exclusive earlier this month. It was later confirmed that the title will not make the console's launch lineup.
Watch a trailer for Bayonetta 2 below: