Playability:
Interesting concept and difficult to play at first. Would do great as a twin-stick shooter.
Theme:
Didn't really feel the theme come through on this one. Might be missing something here but it didn't feel like anything was watching or being watched outside of observing particles.
Cleverness:
Cool way of visualizing and playing around with fission and fusion. Dig it.
Artistic Style:
Simple, consistent, and easy to understand.