Hello! Welcome to Feedback Quest 6! My name's Hythrain, and I'm one of the hosts and streamers for this event! This feedback is being written live on my stream.
While I don't normally play Katamari games, I do understand the fun of them and have seen enough of them to have a feel for how they play. That being said, I was a little frustrated with how hard this was to control. The "ball" felt very floaty and a lot of the time I had far more difficulty than I felt I should have trying to get it spinning. In addition, only the "ball" itself is capable of grabbing anything, which makes it more than a little frustrating when I know I'm clearly rolling over an object that should be caught but it's not simply because it's touching other parts and not the "ball" itself.
I don't really have a lot else I can add to this. It works as intended and is fun to play, just needs a tad bit more control for the player and less float.