Nice job, definitely a unique take on the theme. I liked the art, especially the subtle animation of the kangaroos, it really made them feel alive. Also fun sound effects, though if you're going to have the same thing played a lot recording a few different variations and playing one at random can go a long way.
I'm not personally a huge fan that the entire game basically comes down to random chance though. I started the game then realized I should probably read the description first, when I had finished that I had accidentally gotten 3 of the 4 statues then spent like 3 minutes trying to get the last one and make it back to the tent.