Regarding that wolf, I remember coming across it a while ago, and posting about it at the FEFEA forums.
And I have one of the replies from the original topic saved, so here's a relevant quote from March 20, 2004:
In Reply to: Re: Monster
Party lost enemy posted by ICEknight on March 20, 2004 at 09:45:02:
> > > Nothing too exciting, but here it
is... > > >  > > > > > > I've just found this F-1 werewolf right after
the graphics for the nightmarish version of the first stage. I'm guessing
they removed it because it was too goofy and would have ruined the
atmosphere of that level. > >
> > I'm not sure, bit I may have
found the enemy itself, using incorrect graphics. The Game Genie code
GPAYPT will change the first enemy of the game to ID #14 (normally #02).
It looks like one of those dog enemies, but it sits perfectly still until
you come near it, at which point it starts vibrating left and right. Move
a little closer, and it drops from whatever platform it may be sitting on
and zooms around on the ground, trying to hit you. You can play around
with the code a bit to make different enemies appear; try changing the
first two letters. Enemy values above 24 seem to freeze the
game. > > > > I haven't played much further than the first
level, so I don't know for sure if this enemy is actually unused or
not...its actions seemed to fit the sprite, though. > > > That certainly doesn't sound like any enemy I've come
across in the whole game, but it's strange that the graphics don't look
properly since they're actually located between some of the other enemies
from that stage, so they should be already loaded into the VRAM. Perhaps
they're only shown correctly in the second half of the stage... or
not. > > Anyway, do you know where in the ROM is that value the
code you posted is changing? It would be easier for me to hex edit the ROM
than use an emulator with GG support...
It's at $1F611 in
the ROM.
As for the graphics not loading correctly, Monster Party
uses some weird system for its sprite mappings...the data seems to be
level-specific, so enemies that don't belong in a particular level will
use mappings and animations from other enemies in the level, even if its
tiles are loaded. Either the F-1 werewolf had its sprite mappings replaced
with the dog's, or it wasn't meant to appear in the first
level.
- BMF
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