It's been a looong time.
How have you been?
Aside from Portal 2 jokes (already?), I've been playing this fun yet strange game called Super Crate Box
The point of the game is to collect as many crates as possible while surviving against three different types of enemies. When you get a crate, you get another random weapon (different from the one you are already using). As you play the game, you start unlocking more weapons. You start the game with a pistol, and in the crates are a second pistol, machine gun, shotgun, and a bazooka. You can unlock weapons like a grenade launcher and a laser rifle, as well as unlockable characters.
Play the tutorial, and you'll learn a lot more.
Random achievements that aren't in the game:
Clever Girl: have an enemy drop on your head from the top of the screen.
Well, Can't Do That: Jump on an enemy.
Never Enuff Dakka: Unlock the Minigun.
Kill Three Birds With One Sword: Slice three flying enemies in midair in one attack.
This is Gonna Be Fun: Unlock the Laser Rifle.
OH GOD: Die from an enraged large enemy.
Forgetting About Something?: Kill five enemies with the disk gun, only to die by a disk.
Oh, Bull: keep shooting a big enemy near a crate only to get a disk gun while firing.