I've only played dean and I'm half through are there any other routes where the cg's are fully colored in dean there's at least three thta are only sketches. Just out of curiosity. Loving it by the way ;) I like mystery and the interaction with the passwords seems really clever. I like the feeling of the black and white backgrounds and the art it simple but likable. Just do all CG in color too xD!
There was a poll on patreon way back when where Grizz asked if he should do smaller/slower updates (can't remember which) with full CGs or do sketches with more progression. Sketches won the vote, probably for the best considering i'm pretty sure the early CGs are going to get redone to be inline with the future sprites.
CG poll: https://www.patreon.com/posts/assets-moving-31560689
Very old preview of new sprites for tyson & sal: https://www.patreon.com/posts/sprite-reworks-29670294