Super punch:
Press Start + A during a fight.

Fight	Password
1	2413-41-14-2133
2	4231-14-41-1233
3	1324-14-41-3321
4	2324-34-14-1323
5	3243-43-41-1323
6	4323-34-14-3132
7	2312-43-41-1233
8	1441-21-13-4142
9	4114-11-23-1424
10	2233-44-21-1224
11	1112-44-13-1343
12	2121-31-42-3241
13	4334-14-34-4432
14	3443-41-43-2443
15	1314-24-41-4212