PLOTTER .BAS 3K (function plotter; start with "run 112")
PUNKTE .BAS 3K (2-D plotting)
ROMDISAS.BAS 6K (ROM disassembler, ; the book has the comments for the assembly listing generated by ROMDISAS)
SPREDIT .BAS 4K (sprite editor)
SPRGEN .ASM 8K (sprite generator)