I didn't have any crashes on my powerbook w/10.4.9.
But, it is...weird. Some documentation would help immensely. The object appears to be to move the cursor around, which causes a small cluster of balls to follow you. You use that cluster of balls to knock smaller balls into larger balls. They get stuck together, explode (for some reason), and then you advance to the next level.
I only got that far by getting lucky, and I almost gave up before getting that far. Again, no docs that I could see.
It's more like a surrealist or expressionist concept of a game, than an actual game.
The control needs work, and some documentation would be nice. But the music is very soothing and it looks reasonably pretty.