It should only take a few days to get all the "generic" code identified and bashed into shape for relocation; longer if I were to comment every aspect like Knight Lore.
And just because it only took 2 mins...
|Alien 8 title screen - Coco 3 (MESS)|
The palette is pretty rough, especially the cyan...
UPDATES 1,2 & 3: fixed up the colours a little bit
|Knight Lore title - Coco3 RGB palette|
|Alien 8 - Coco3 RGB palette|
|Pentagram - Coco3 RGB palette|