To kill begionax after you have been to the doctor's when she jumps
on the cauldron you have to jump up as well and throw a punch (don't
forget to dodge the elixir) then she will turn into a frog then g
the way which she is going (if she goes somewhere while she is a
frog go in front of her a lob a punch) and keep doing it till she
dies then u have to jump through her mirror