So I thought that the animation of Frank flapping his wings could be better. So I set out to make it better. Instead of 2 frames, it is now four, but one of the frames is used twice. Frank now looks like this:

I  used a gif maker that apparently doesn't like to make images bigger. The original images are 8x9 and look much better, but Frank was hard to see so I made it bigger. Frank does not look this blurry in the game. I was asleep most of yesterday. And I'm still sleepy.

So next I will resume work on GoSub for the 7800. I'm going to put in a few suggestions, like a second shark enemy in the later levels, and a periodic boss fight. How big can a 7800 sprite be? 8x8?