I'm still seeing people really struggle to understand the game play
mechanic behind Wyrmhunter. I'm thinking a good solution is to put a
thorough, simple explanation into the game text description - if
nothing else people will notice it there on their way to the
screenshots and come back to it later if they get stuck.
I modified the pending app store description as well as the Wyrmhunter
game page on Plasmaoworks. Check it out and let me know if you have
any further suggestions:
http://www.plasmaworks.com/wyrmhunter