As for me it might have been Mario Kart Ds and several games on a r4 card, also had a gamecube but I can't remember using it, especially since my parents got rid of it before I was interested in retro games(only managed to save the old copy of luigi's mansion before getting the remake).
But yeah,I would agree with you that the Lego games are great. I have rather fond memories of playing the lego batman trilogy(but also lego marvel) and getting lost in the open areas with my sisters even though we only managed to beat the first game at that time.