Fastest way: Beat the whole subspace emissary mode 100%.
You cannot unlock him in jingle brawl, you can only unlock him in super fall brawl
Their is no cheat to unlock all the characters all at once.Only cheats to get the characters seperatly.
story mode
pass it your self cheaters
on super brawl summer defeat Patrick on tournament mode to unlock Patrick and the goo lagoon
Play 400 brawls and unlock all the characters.
By far the easiest way to unlock all the characters is by achieving 100% completion in the subspace emissary mode.
If you complete the subspace emissary mode 100% you will unlock all characters.
Nothing really happens. You can just play with all the different characters.
Beat all the events avalible to you and unlock new characters.
To unock All Star mode, you must unlock all 35 characters.
There are many secret characters in Brawl to get them you can do various things for each character, but the easiest way to get them all is by beating the subspace emissary mode 100%.