Depends on what game you're playing.
BlazBlue compared to 90s fighting games? Evolving to be easier. It has better game mechanics that generally work in a much tighter, much more accessible way. (Unless you're playing the game on hard or above and fighting unlimited mode characters. Unlimited Mu-12 with normal Hazama? I'd say "shoot me now" if Mu didn't already. Oh, I'm sorry, did I say she shot me? No, I meant to say she spammed these little things that WOULD'VE shot me if they weren't more fixated on flying up my ass every time I ALMOST land a hit. NJAMPGAGTAFLAJHGUOIAWNOTA.)
The newer Monster Hunters are also evolving. Take a look at Monster Hunter Tri, then look at the original. The original MH was insanely difficult due to crappy controls, broken game mechanics, a god-awful camera, and an absurd difficulty curve. Gather mushrooms, gather herbs, kill velociprey, HOLY SHIT A RATHALOS THAT CHASES YOU BECAUSE YOU'RE STEALING ITS CHILDREN FFFFFFFFFFFFFFFFFFFFFFFFFFFF.
Then by MHTri everything was fixed. The GS wasn't the only good weapon in the damn game (ignoring bowguns because bowguns are game breakers anyway. Seriously, explosive ammo spam, the fuck), multiplayer is still around (I believe), and even if it wasn't everything is at a point where you can easily solo everything and don't get one-hit killed by a random attack occurring from just off screen.
Ace Combat on the other hand... Yeah, I haven't even played the demo to the new one, but I've heard about it. Go play Ace Combat 5 then the demo of Assault Horizon and you tell me who's selling out what.