Thanks for the responses everyone!
Difficulty has been one of the biggest issues so far. We didn't want it to seem too easy, but it seems we've overstepped that goal. We'll likely be tuning the game to be easier to reach and obtain the food.
Thanks for the ideas and feedback, BowWow200. A few of the ideas you mentioned we're actually considered during development, and will likely make an appearance as we continue to update. The input on controls and difficulty is greatly appreciated, as we want to make our game as fun and creative as possible, while keeping the frustrating aspects to a minimum.
Ah, sorry. You're right, though, you'll have to select a powerup first before you can fire.
We'll be uploading a new version with more detail and help/tips very shortly. Thanks for playing!