A lot of school time has passed through me in this month, so it took me really long to adapt ramcharmap to 16px after figuring out that there is no such thing as a playfield in the 7800. Other than that, little Ninja hasn't yet received weapons, but he can walk on a 12-lined playfield now. Oh, I forgot that his sprites are totally glitched because I took out several unused images. I would fix it but Rev's walk cycle is yet confusing. There is also a bug that can get the main sprite to catch in between the lines of a recognized char thus allowing you to walk in the middle of the tiles. A decent/mediocre fix for now is to make peekchar only read the topmost line of the character that it's peeking instead of the whole 16.

When Rev himself implements a way to scroll smooth and vertically, I will give him weapons, maybe put in some enemies too. If I implement enemies they will walk in random for three demos until I actually implement AI.

Some advice: The TAB key ruins everything, no matter what. If indentation is important in your language, don't use TAB or it will be furiously hard to trace the error.

Palette is kinda offset compared to 1st screenshot but i'm not focusing on that right now. Attachments below.