The Warriors Street Brawl

Follow these steps to get infinite continues in Arcade mode:

1. Set up two controllers (P1 and P2)
2. Select start on P1 controller and play through the game as normal
3. When you're on your last life at about 25% health, press start on the P2 controller
4. Select P2 Character and let P1 die out
5. Now play through with P2 until you're on your last life at about 25% health
6. Press start on P1 and continue playing, repeating switching controllers as necessary

Note: Make sure you are playing and signed in with the account you want the achievement to register when you defeat Luther (Final Boss)

While going for Big Bopper, my game kept on freezing at the stats screen after beating a level. And after reading the thread below I knew I wasn't the only one having this problem:

http://www.xboxachievements.com/forum/showthread.php?t=35514...

Finally I managed to get this achievement solo doing the following:

-I followed VinceAsuma's solution on TA, but instead of playing with one character, I left both characters in the game and finished every level with both of them. (it actually makes the game easier, just keep tapping on both controllers while having multiple enemies on screen)

-I used 2 original Xbox 360 controllers (instead of 1 original and 1 Hori pad)

-After each completed level, I did not skip the point calculation, I just left it going until it was done, and then pressed X

-I did skip all the 'talking' parts

-I played offline until I reached stage 6, at that point I signed in to Xbox Live (my gamer profile was signed in during the whole game ofcourse)

Hope this helps!