In Yukkuri Postal game, you must land 10 bat hits on an Adult Yukkuri to kill it immediately, if you want it to puke to death just it takes 9 bat hits and is dead after a couple of consecutive pukes... Unless you kick/punch it after the first puke, if you have a lot of time, you can cover the floor with vomit.
The yukkuris are only as strong as they need to be. However, seeing as how DOS yukkuris usually need AT rounds or a 50 cal to be taken down (or a crafty anon with a knife and a shovel), it's not hard to imagine the bigger and healthier yukkuris to have resilient and tough skin.
Thanks. The last box is still clumsy, but at least the sense is more accurate.
What you did to my Reimu was violence too. I said I'm not forgiving you no matter what.*SLAM**WHAMM*Yube!Screwing around, huh...YUBII!HEY! What the hell are you doing! Violence is not city sect!