Drilling Addition Facts

We're drilling addition facts. So I'm looking for addition games that Hero can play while he's building speed and accuracy. Soooo much more fun than worksheets! Here are some that we've tried:

Plupon Addition Game: add 3 numbers to make a 10
Cone Crazy Flavor Flury: add 2 numbers from fact families you choose.

We've also been known to play Go to the Dump to practice facts.

How do you drill facts at your house?