Way to go, Nemo! Now that you've seen him, you'll probably have him vanquished within a week.
That's such a pretty name ... Where did your user names originate, if you don't mind my asking ? 
Thanks.

My Hammerfest accounts are named after characters (who haven't appeared yet) in the webcomic I'm making. As for where they originated... secretly, they're all thinly disguised puns.
According to the gauge, I didn't do any damage to him ... not sure what I was doing wrong ...I don't know if that's what you were trying, but throwing your bombs at him directly won't cause any damage. You have to employ them in other ways.

If you were already trying the other ways... all that's left is patience. Jump around, stay alive, and you'll inevitably land a lucky strike.
And don't worry, Neko. All the 90s get surprisingly easier with practice. (Well... aside from 95.

) Even when you don't break your old records, it's important to remember that you're getting better every time you play!