After having a little fun. I learned a few things about this chip.. Pullups are different..
My goal on this was to just figure out Pin Change interrupts, just reading datasheet. One thing I found is you can't select whether falling, rising, etc.. So I had to add a little more code compared to external interrupt INT0 . The advantage of this is I can use other pins for interrupt other then just PB2.
It works..
Her is the code I used for Pin Change interrupt on PB2 works great. I did add a .1uf Cap on GND to PB2 for de-bounce.