Did we ever get an explanation on where Hammerhips got the Dog drugs from? If not, maybe that could be explored in Monster Monsoon or something. Someone distributing them around, probably to up and coming villains or something, so they'd use them, make some creatures which seem werewolf-like (probably what at least the Main Character who is a werewolf from MM would think at first), but aren't. The distributer would be doing this for their own benefit, their reasoning of course is up to you. Maybe it'd culminate in a fight against them, teaming up with Hammerhips? and maybe if you lose your characters would become dogboys? at least for the cutscene, maybe it'd be permament too, which'd change dialogue a bit. idk. just an idea.
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The dog drugs and Cheeky's powers were intended to be part of a bigger story, but the "mastermind" villains got cut because this game wasn't quite popular enough for me to develop it past v4. Hammerhips was meant to be working with her mad scientist sister and Cheeky with a magical mascot. I think that there's a good chance that the mad scientist sister will make it into a future game where I may make a reference to her as the supplier. There's a loose connection to the dog boys in Monsoon where Viki's dialogue implies that Felix may also have been part of the experiment rather than a true werewolf like he believes.