Yes...Simply jump over 30 hurdles or complete 30 dance moves and your tamagotchi will receive an "excellent" score (rather than "ok," "good," "great," etc).
Hers a tip, On the jumping game, if you want to lose weight quickly just be4 it evolves or something like that, you just do 3 hurdels, then, on the 4th, crash or quite...this will put up 1 heart and lose 3 weight.