im guessing this game purely experimental. im noting even going to rate it.

Rub what exactly?

The game is quite visually appeal, but lacks challenge as there is no limit to how many rabbit's one can hold, so, one can simply hold click and swoop the cursor back and forth, from white hole, to field, to black hole. The visuals are very nice, and an less common game type is refreshing. I am sure if you created more with the game, such as a simple HUD, a brief instruction screen, and perhaps an "upgrade station" as well as varying waves with different types of rabbits (like ones that take more space in your carry capacity), the game would feel whole. Again, very nice visuals.

I don't understand what i'm supposed to do.

lol.just lol