I got a 1st wave Tama-Go... Green with Mametchi and I went to Jusco today to get one of the figures... But they didn't have any of the 1st wave figures.. They had the 1st wave and 2nd wave Tama-Gos though... I was just wondering if the 2nd wave figure would work on a 1st wave Tama-Go... Since people think that the games on each of the figures are already built into each Tama-Go..... Or should I get a 2nd wave Tama-Go to be on the safe side? T_T Help~~~