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Bill Blaster (Bullet Bill launcher) (27, rev. 26)
By  Hiccup on 04-28-18, 04:51 pm
Category 'Enemies - Castle', known, fully documented
Sprite set: 5-1
Data files:
• /enemy/I_killer_ashiba.nsbmd (SOMETHING_killer_scaffold)
• /enemy/I_killer_black.nsbmd
• /enemy/I_killer_houdai.nsbmd (SOMETHING_killer_battery)
• /enemy/killer.nsmbd
Sprite fields:
Shooting direction: list at nybble 9: 1=Left,2=Right,0=Both
Height: value at nybble 10. A height of 9 or more will make the Bill Blaster invisible if the 8 bottommost tiles disappear from view, but still retains collision.
Unknown 8: value at nybble 8. Was used by Nintendo devs, somehow as a copy of Nybble 10, but is apparently never called at all, needs testing. Doesn't seem to affect spawned Bullet Bills settings.
Unknown 11: value at nybble 11. is stored by the game for ulterior use but seems to never be called, still needs testing. Doesn't seem to affect spawned Bullet Bills settings.
Bill Blaster (Bullet Bill launcher) (27, rev. 27)
By  Hiccup on 04-28-18, 04:51 pm
Category 'Enemies - Castle', known
Sprite set: 5-1
Data files:
• /enemy/I_killer_ashiba.nsbmd (SOMETHING_killer_scaffold)
• /enemy/I_killer_black.nsbmd
• /enemy/I_killer_houdai.nsbmd (SOMETHING_killer_battery)
• /enemy/killer.nsmbd
Sprite fields:
Shooting direction: list at nybble 9: 1=Left,2=Right,0=Both
Height: value at nybble 10. A height of 9 or more will make the Bill Blaster invisible if the 8 bottommost tiles disappear from view, but still retains collision.
Unknown 8: value at nybble 8. Was used by Nintendo devs, somehow as a copy of Nybble 10, but is apparently never called at all, needs testing. Doesn't seem to affect spawned Bullet Bills settings.
Unknown 11: value at nybble 11. is stored by the game for ulterior use but seems to never be called, still needs testing. Doesn't seem to affect spawned Bullet Bills settings.