This game was a lot of fun, a pretty solid concept. Trying to jump into the blackholes could be frustrating, depending on where you enter them it seems like it was a little chancey about which direction you'd be thrown. The player can solve this by placing one at ground level and walking into the bottom corner, but for some challenges the natural solution seemed to be to place a black hole a distance from the character and jump into it, which rapidly becomes tricky. Otherwise though, lots of fun!