I see your point! Does this help?
There is food in the middle, and you have to defend it for as long as possible from incoming bugs by prodding them.
We're working on an update to include multi-touch (so you can splat multiple bugs at the same time), and adjustments will be made to the wasp so it's more obvious when you can attack it. This was based on review feedback, but also baring in mind we don't have much time left before Christmas when we'd all very much like to go home! The game is small and ideally it'd be great to make the game bigger with more levels, more bugs and more challenges, but we just can't squeeze it in.
Lately we've been working on Woolly the Jumper: A Sheep on the Edge, it's in submission with Apple and I really hope they can approve it in time for Christmas. Here's one of the first screenshots (it's already a little out of date, as art tweaks were still being made right up till submission). This one will also be 59p.