Thanks for porting this, Kaje! I was planning to do it myself but never got around to it. There was a bug I was going to fix that came out of v9 I think, where the raindrop image is doubled because Badspot changed the parsing grid. The splashes look fine, I just think the drop image needs to be cropped down to a grid of 2x2 drops, but I may be wrong. I'll do some tests and fix it.
For some reason the snail sound didn't work for me, perhaps it's because I'm running it on Linux, I don't know.