Demonstrating the flexibility developers have to show when it comes to running a business on the App Store, US developer Appy Entertainment has made two seemingly contradictory moves.

The first applies to its million-selling FaceFighter game, which it is now supporting with three 99c content packs.

"Even after a half-dozen free updates adding new weapons, enemies, and finishing moves to the game, our fans still asked for more. We're listening, so we added a fist-full of content for players to download," said Appy's brand director Paul O'Connor.

This is split between a character pack, a weapon pack and a finishing moves packs. All three can be purchased together for $1.99.

Sales of the bundle are outdistancing individual packs by about two-to-one.

Doing the do

"The App Store is a new market that seems to change overnight," said Chris Ulm, Appy's CEO.

"Companies need to be alert to trends and continue presenting their games to the widest audience possible. FaceFighter has been downloaded nearly three million times in all its forms, and this new premium content allows us to reach all of those fans with follow-on sales."

The company's other move relates to its ad-supported Tune Runner game, which was originally released using the freemium or free2play model. In this players bought additional battery packs to play the game, although there was the option to purchase it outright too.

Now however Tune Runner Fusion - a paid only version - has been released; presumably to enable exposure in the paid charts, as well as to provide a clearer option for people who prefer paid games.