I spent way too many hours today working on this:
I implemented actual priority handling for all of the konami games! This fixes Escape Kids & Vendetta to a playable state. It is noticeable in a lot of other games, but not as much.
I also added proper shadow implementations. This affects nearly every konami game in fba. ^^ For the first time in over 7 years, Tmnt has proper shadows! This also fixes a really ugly shadow bug with x-men (see photo) as well as '88 games' shadow / gauge.
Additionally, I fixed a bug in Escape Kid's title screen.

The games are all handled now as 32-bit bitmaps. This is a very clean and simple way of doing things.