Kara Visits Tapulous to Try Out Tap Tap Revenge 2!

Last night, Tapulous launched the second version of its hugely popular iPhone game app, Tap Tap Revenge.

With Tap Tap Revenge 2, the Silicon Valley start-up is hoping to keep up the momentum of its first success on the Apple (AAPL) service.

Tap Tap has been downloaded six million times, growing strongly with only a small amount of angel funding. The game has had other versions, but this is the first major upgrade.

In it, the TTR sequel got an updated look, new features, more and special songs and, most importantly, an intense focus on social gaming. In challenges, users can try to beat the scores of others.

Tapulous also makes other apps, like Twinkle, and it is hoping to knit them into an interconnected offering.

I visited the Tapulous offices in a former storefront in downtown Palo Alto, Calif., to interview co-founders Andrew Lacy and Bart Decrem to talk about the iPhone ecosystem and where it is all going.

Here’s the video:

And here are some screenshots of TTR2: