simple,the black hole follows your mouse and collect those purple pixels! How fast objects come to you depends on how large your hole is!(you can see that on the top left corner) Bigger pixels move slower!collect more to get bigger! the pixel will spin around in your black hole before collected! you might lag until you get to size 3!
Black Hole io. coming soon! in black hole io, you have to collect as much pixels as possible,the game will be online which means that it may get laggy, (it will) You can eat other holes.( not realistic) but to eat them,you have to be bigger than them... if you are not big enough then the pixel might be pulled away form you by and enemy,so you will have to go further to collect them, BEWARE!!! you might get eaten in the process!