Level Password Back alley MOOMIN Back street MOONPIG Back street B MOONPINGEON Back roof SNUFFKIN Main street LITTLE_MI Main street B LITTLE_MO Vinnie's scrap yard SOUP_DRAGON Vinnie's scrap yard B SUPER_DRAGON
When your in Beer's Bar punchout all the normal thugs but leave the red mouse. Jump up on stage get the posters and walk towards the far wall on the stage.Walk up and down there a bit until you get a life. Now jump down off the stage and walk to the top right corner of the bar. Punch the dog standing there. By doing this you can now go back onto the main street instead of going into the back streets.
TIP: Always check in places you can't see. There's always a life or some other goods hidden in dark corners.