My bank for playfield graphics is filling up too fast. I have 16 basic room types (based on exit variations). I wanted each room type to have at least 3 different styles: Full room, Tunnel and Maze. Now that I have most full room and tunnel styles done I've only got 300+ bytes free. Ouch.

What I've come up with is rendering the top, middle and bottom in sections to reduce duplication of data. Check out what I mean below:

 pfscroll downdown
playfield:
XX.X........................X.XX
XXXX........................XXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
end

pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown

playfield:
XX............................XX
X..............................X
X..............................X
X..............................X
XX............................XX
end

pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown
pfscroll downdown : pfscroll downdown : pfscroll downdown

playfieldpos = 8
playfield:
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXX........................XXXX
XX.X........................X.XX
end