Most people probably don't know about this but there is a website that lets you time travel back in time and it is useful to experience most flash games back in time and feel pretty nostalgic about it.
Website: http://web.archive.org/web/201103130800 ... om/?s=2&a=
Yes you can actually play PB2 back in 2011 and all the way to 2020! Feel nostalgic about it!
Though multiplayer mode no longer works, same goes for other things but other then that the game PB2 and the campaign actually works!
Not sure if it's possible to play custom maps on it though.
I felt pretty nostalgic playing this!
Omg very old intro! Can't believe it was like that many years ago!
Also this is how you download these old SWF files in case if you wanted to play standalone on it.