I don't like the Yume Nikki comparisons at all. Would you like to live in a world where every game with minimal directions is called a yumelike? Yeah, that's what I thought.
Talking about the game itself though (unlike 99% of people who mention this game) it's clear that the developer understands what makes a collectathon fun, which is having the controls be comfortable enough to move around at ease but stiff enough to make grabbing shit challenging.