Findings:
- Sonic X-treme
- IRON NODER X: XTREME XCELLENCE
- MR XTREME (user)
- xtreme (user)
- X-Treme X-Men
- Dead or Alive Xtreme Beach Volleyball
- Mega Man Xtreme 2
- Mega Man Xtreme
- XT
- Xtreme Madness (user)
- x-treme (user)
- The new Burger King X-Treme Double Cheeseburger
- Xtreme Gulp
- Subaru XT
- Cyclone XT
- Xt (user)
If you Log in you could create a "The XT is for XTreme!" node. If you don't already have an account, you can register here.