FM Towns Frog Feast

The FM Towns version of Frog Feast has been updated to use a 256x240 double buffered front plane, and a 320x240 static backplane. This was inspired by the CD-i version.

I initially tried a 256x240 mode for both screens. The only problem with using the 256x240 mode, is that it leaves a blank area on the sides of the screen. And, using a 320x240 mode for the foreground screens doesn't allow for double buffering. Without double buffering, the sprites flicker near the top of the screen.