Many ideas have been taken from Streets of Rage Remake (an indie game), which is a good thing since SOR Remake is a remarkable piece of work. I don't think the combo system really adds very much. It turns the game into some kind of Sengoku 3 hack and slash where combos are more important than effectively cleaning up the streets. I have found a bug that is extremely frustrating: while using legacy controls in the keyboard, there's no way to grab a weapon thrown at you, like in the defensive tricks with Cherry, when the robot throw a pipe at you. The attack button only attacks, it doesn't catch the weapon no matter how many times I try. This is a very basic command, and not having it to work after 4 years of game release is infuriating. The new art is amazing, depicting very well urban decay. Music is good. I expected more from sound effects though. SOR 2 and SOR 3 beating sounds really sounded hard as it should be.
