Streets of Rage 4

If your looking to get this solo, here is an easy method. You need to get 500 damage in a combo.

Load up level 5, I used blaze, underground and gather the stars through the level until you get to the boss after the bar. Once you get to the boss wait until there are a few enemies about and then unleash your special star move, wait a second and unleash again until you have combo’d all your stars.

I left a video showing how I did. You can see I mess up my first star but still have enough to make over 500 for the combo.

Star locations

First is toward the end of the underground part, just before you get to lions.

Second is in the bar if you smash a chair. You can grab the third by using the taser on the arcade machine and it’s in the retro level.

There is another if you smash the motor bikes in the yard

The achievement is for getting 500 damage in a combo.

By far your best solution for this achievement is to beat level 1 on Mania difficulty either by yourself or with a friend (You need to do this for another achievement anyway). This will unlock the Police Precinct on Mania.

You'll need a Co-Op partner for this.

Start level 2 (Police Precinct) on the Mania difficulty (The reason for Mania difficulty is that there's much more health per enemy and there's far more of them). Continue where you reach the black clothed prison officer. One of you should start to combo while the other waits just outside the cell. Once he's had half his health taken off the cell doors will open, Once you've knocked a few out, an absolute tonne of yellow clothed prison officers will come from your right hand side. Now's the time to unleash all your specials on the group, make sure you're also covering the space in-front of you from and behind you so you don't get hit. Once you've used your specials up, pound through few the remaining goons. There is a fairly large tolerance and in the video you can see I got 1188 damage with enemies remaining.

Note, this achievement is skill based but with persistence isn't actually that hard. There isn't a particular set of characters that work best for this (just not skate), but knowing the best location alone will make this much easier.