Hehe, I will try not to drown my life in a bottle xD
As for MGR, yes the fox blade is incredibly helpful as it 1HKO any non-boss enemy. The thing is if you didn't get a code to get it when you bought the game you have to get it from the store :/ It might be a worthy investment though as it really just slices everything up. However, for bosses, you definitely are going to want the murasama blade.
Murasama blade is THE boss killer and is almost too OP imo. So for non-boss enemies=fox blade, for bosses=murasama
Heh, P4A is definitely a tough one. Like you I am not very good at sports or fighting games but I really like Persona the rpg so I tried P4A out lol. Too bad its easily the hardest plat in any game I have played so far xD. Honestly this might be the one game that beats me :/ I'm certainly not going to go down without a fight though!