NEOGEO BATTLE COLISEUM

For this achievement, you are allowed to change the difficulty and other stats of the CPUs. Here's what I recommend:

Set the CPU Level to 1
Set the P1 Defense Level to 8
Set the P2 Defense Level to 1
Set P1 Power Gauge to Max

Now go into Arcade mode and choose a character who has a long reaching projectile (I recommend Mudman) and keep hitting your opponents with it. DING! Achievement unlocked.

Easy achievement, took me less than 5 minutes. You have to finish 2 enemies without ever getting hit.

- From the MAIN MENU go to

- HELP & OPTIONS >
- SETTINGS >
- BATTLE SETTING

Now

-Change CPU-LEVEL to 1
-Change DEFENSE LEVEL 1P to 8
-Under the last setting, set the P2 Defense Level to 1
-Set the POWER GAUGE 1P to MAX

-Now go back to the MAIN MENU and select STORY MODE

-At Character Select choose HAOHMARU (top row) and MUDMAN (bottom row, right corner)

-At the VS screen use up/down on D-PAD to make sure that 1st Player is displayed above HAOHMARU

-Start the match and pretty much just keep pressing the Y button. I stayed close to the opponent and just kept mashing. The achievement will pop after the 2nd opponent is defeated.

-There is some minor luck involved in this, if you get hit at all you need to restart the match. Sometimes your opponents will be tricky, but they change every time you try. Just try this a few times and you should get it no sweat.