It is possible to mess with traditional traditional gameplay and have it be fun, but it needs to be excecuted properly. When Mario stepped through the looking glass into the third dimension on the N64 it was a natural progression of ther gameplay. Now instead of playing and jumping in the realm of 2D Mario 64 added another dimension to the gameplay. Platforming works in 3D and some would argue it works better in 3D than it did in 2D. One form of gameplay that doesn't translate well to the 3D environment is maze chase. This is the type of game that Pac-Man fans know and love, so while it's not strange for Namco Bandai to attempt to create a family friendly 3D platformer making it a Pac-Man game maybe a huge misstep.