Wow that was close!
Congratulations Votart.
Some nice alternative solutions too. Rubber was surprisingly competitive.
I tweaked for ages, but could not get my trebuchet to "fling" the dillo any better.
Either he fell out, or was hooked in the cloth and pulled down.
It took just three tweaks after seeing mark_man's solution to get it perfect - either a gentle lob, or a fast missile, straight through the portal. And so easy to tune.
I'm sure I tried this configuration during my development attempts, but it didn't work.
In the end it was easier to tweak it for a weak lob to make the catcher much cheaper.
Tweaked to 4674!