ok first of all i didn't try your game after the update , ill check it later when i'm not busy ^^ ( collage stuffs because the collage starts tomorrow ).
about your question , how can you put 2 varibales to fit on one animation.
simple lets say we have a very complicated game which has the normal animations ( move,jump,idle,...) and another animations which has the mood of the player like player level5, level10 , level15...
so in this way you have 2 variables , one for the normal and one for the mood or level ^^
so in the animations of the player it will has like this :
player_variable1_variable2 = player_move_level5
now 2nd level (level10) = player_move_level10
and so on in all the stuffs ^^ in this case you just want to change the 2nd variable to change the whole animations from level to level and in one simple event you can do that for example :
everytick ->>> player : level variable = set the variable 2 to "level&level variable"
so now you have 3 variable the two i mentioned before and one for the counting the level ^^