I don't know flash algorithm. Many games of whole worlds may worked by something... choice variables to random tables, and I surprised to TAS can't apply in flash.
I know flash game the "Kantai(Ship) Collection" by Japenise.
Although it is a online game, but this game just like RPG, Attack or Defense value is decided from random variables.
(example : Something mob has a Defense=10, and random variable interval is 0.7*[Defense]~1.3*[Defense])
This means "Random number decided in certain time".
So, Flash developer make games by "Code", but We(TASer?) do not control these random number?? If I mistaken understanding, TASing of ISAAC game just has time trouble(so looooong), can make it if TASer have a many time?
Frankly, I get to know TAS can not make in Flash, but don't understand impossibility of TAS based Flash. Thank you!
p.s. I don't know English very well (*.*) Sorry for wrong grammar or expression;