PORTALBALL
Presenting PORTALBALL - the best portal coop map ever.
What's so special?
PORTALBALL is unique; it's a map designed for two players not to cooperate, but to compete.
PORTALBALL brings you enormous amount of fun, by giving you and you friend a chance to spare in a real duel. Rules are simple: Both of you press buttons on the wall, then it's just a pure fun - you need to grab the ball and drop it to your opponents goal. The first one who count five points on his score table (above the goal) wins the match.
donwload link(steam workshop):
http://steamcommunity.com/sharedfiles/filedetails/?id=90806279&searchtext=portalball
A bit PTIish? I don't think it's the best map. I think it's an original map. You can definately make it better with detailing.
The best portal coop map ever?
Play Aperture Valentine, thats one of the best Portal coop maps, but this.. i dont think.
Also this map was probably made in 5 minutes,
Come on guys, instead of hating the map just becouse it's done in PTI, just grab one of your friend on steam and try it out. I don't want to overrate PORTALBALL, but everyone I had played with agree that it is a great fun! And we never end up on a single match.
Please put this map in the Community releases download database. Thanks!
I agree with Chicken, this should go in the proper Downloads database.
As for the map, despite being PTI I think it looks like it'd be a lot of fun 
. Detailing in Hammer WOULD make it more interesting but it's pretty much fine as it is 
Here it is, in the proper section:
http://forums.thinking.withportals.com/downloads.php?view=detail&df_id=2790
play and enjoy! 