It takes the simple, tried and true concept of Google Fight and applies it to Twitter. Type two Twitter users, and Tweefight will calculate their "rank" (presumably using the same algorithm as Tweefind), compare them, and tell you which one "won" the fight.
Again, just like Tweefind, although the application is far from perfect, it brings some interesting ideas to the table. This time it's power-ups; spinach, magic potion and super power which increase your "power," and which you can buy for $0.99, $1.99 and $4.99 to help you win Tweefights. While I'm not sure that anyone will get hooked on Tweefight so hard they'll actually spend money to get better in the game, the concept of paid upgrades applied to Twitter is, if nothing else, interesting.
More Twitter resources from Mashable:
- 26 Charities and Non-Profits That Tweet
- 6 Unique Twitter Visualizations