It is a short mini-game, but it has a lot to offer!
The concept is really fun! You really have to nail the timing to avoid making the poor robot fall through. And the fact that its pathing is "random" at times (instead of the optimal collecting route) keeps you on your toes, since you don't know where it'll be jumping towards.
Visually, the style looks good, and it's very to understand what's going on, nothing to say!
Great work! =D