Hey, have you played Portal before? It's supposed to be pretty neat. I won't spoil anything for you, but there's a lady that's really funny and she talks about a cake.
On the off-chance that you have played it, do you want to play it again? Portal's coming to the Nvidia Shield on May 12 via the Google Play Store. If you own a Shield, that's kind of cool news!
Judging by this, Portal won't be the only game from that universe to hit the Shield. It seems as if Half-Life 2 will make its way there also. Even though the Shield might not be that widely owned, it'll at least be interesting to see if Valve titles come to any other Android devices.