well i just tried everything and eventually you will unlock most things I've now unlocked everything so I've completed the game Hope i Helped
you turd on the ds and flush it down the toliet
It's called dream curling, and get to the festival's 16th day and finish that day. Simple enough?
you have to finnish different circuits and unlock games by unlocking games.
by adventure mode.
No... Sorry
you have to beat all olympic rec.s
nope lolz i wish
No you can't unlock Jet.
You Can't He Is Only A Referee
Table tennis, Basketball, Archery, Trampoline etc.
you cannot play as (metal sonic) on Mario and sonic at the OLYMPIC games,but a new game has came out in 2009 and its called,Mario and sonic at the winter olympic games and you can play as (metal sonic) on that game and heres the best part.you don't even have to unlock him because he is already there!
sorry you just cant unlock ski diving
you don't unlock them they are playable when you first get the game
1483rnr or u can do all the challenges
clear the adventure tours
how to unlock new players in Mario slam basketball