i like the idea of brewing a potion and getting different outcomes based on what you brew, and the little touches in the writing—branching paths can make for a surprising amount of work though, so it's understandable to run out of time to implement them. by my count including any 3 ingredients out of 6 makes 20 unique endings you would've had to write, and i do appreciate at least having a summary there of what the scene would've been. (a reduction from 6 to 5 ingredients would've cut that number in half, but still!) i agree with others in that a more finished version of this would probably be pretty good if you decide to keep working on it.
EDIT: oh and of course this rat posing for the logo is very, very cute.