Stay a while, stay forev.... wait, no, you can go now.

Just had family visiting so not got much done for the past week.

I did manage to grab the cop frames in the correct order so he doesn't flap about and do crazy stuff now :)

Keystone is going to need some more complex sprite splitting than Berzerk (which in fact has none). There's the possibility of 3 "enemy" objects (the second 2600 player in repeat 3 times mode) on each floor plus the cop, so 3(objects)*4(floors)+1(you)=13, a few more than the C64 has without raster splits. Not a problem though, there's plenty of screen to change registers before the new level of sprites is needed. I might decide to use 8 per level and use the others for the background static objects (blue blocks etc).

The split code for repeating sprites can be used later for Seaquest too :)