Create black holes with numbers! Numbers higher than 980 aren't cool. Numbers less than 40 also suck. A happy accident. Originally, it was supposed to draw polygons based on the number.
181 will make a filled black hole. 90 looks pretty cool. 60 is pentagon heaven. 123 is triangle heaven. 100 is bad***. 500 is mind-bending. 520 is mind-blowing. 900 is awesome. Play to find more!