I was just using my P50 today! But yeah I do admit that the battery issues are really bad on the Px0 series. The other P series cameras that followed (I had a P51 that broke a long time ago) greatly improved the battery performance, and by the Px3 cameras the performance on AA batteries was virtually identical to that of using an InfoLithium battery.
Hah. Somehow I knew it was just a matter of time until you try doing this.
Interesting project. I look forward to seeing any future attempts at colour GB Camera photos. While not as good as the others, the picture of the Super Game Box has some charm of its own. Also, that's a cute dog in the other set of photos.
That was supposed to say 'Super Game Boy' in my previous comment. XD