I found this in "Chocobo's Forest"
Function Moogle_Male_64
    switch 3 ( Chocobo_CurrentField ) from 1 {
    case +0:
        SetTextVariable( 2, Chocobo_ForestHighScore )
        SetTextVariable( 3, Chocobo_ForestGamePlayed )
        break
    case +1:
        SetTextVariable( 2, Chocobo_LagoonHighScore )
        SetTextVariable( 3, Chocobo_LagoonGamePlayed )
        break
    case +2:
        SetTextVariable( 2, Chocobo_GardenHighScore )
        SetTextVariable( 3, Chocobo_GardenGamePlayed )
    }
    SetTextVariable( 5, ( Chocobo_ForestGamePlayed + Chocobo_LagoonGamePlayed ) + Chocobo_GardenGamePlayed )
    SetTextVariable( 4, Chocobo_HotColdPoints )
    if ( Chocobo_Lv99 == 0 ) {
        WindowSync( 7, 128, 240 )
    } else {
        WindowSync( 7, 128, 243 )
    }
    if ( GetDialogChoice == 0 ) {
        set VAR_LocUInt16_9 = 0
        set VAR_LocUInt8_2 = 8
        EnableDialogChoices( 511, VAR_LocUInt8_2 )
        WindowAsync( 6, 4, 246 )
        while ( VAR_LocUInt16_9 < 1 ) {
            set VAR_LocInt8_29 = 1
            EnableDialogChoices( 511, VAR_LocUInt8_2 )
            SetTextVariable( 4, Chocobo_HotColdPoints )
            set VAR_LocInt8_30 = 0
            while ( VAR_LocInt8_30 < 1 ) {
                if ( IsButton(655360L) ) {
                    set VAR_LocInt8_30 = 1
                }
                Wait( 1 )
            }
            switch 9 ( GetDialogChoice ) from 0 {
            case +0:
                if ( ( Chocobo_HotColdPoints >= 10000 ) && ( GetItemCount(175) < 99 ) ) {
                    set Chocobo_HotColdPoints -= 10000
                    AddItem( 175, 1 )
                    set VAR_LocInt8_29 = 0
                }
                set VAR_LocUInt8_2 = 0
                break
            case +1:
                if ( ( Chocobo_HotColdPoints >= 8500 ) && ( GetItemCount(208) < 99 ) ) {
                    set Chocobo_HotColdPoints -= 8500
                    AddItem( 208, 1 )
                    set VAR_LocInt8_29 = 0
                }
The 208 at the bottom there is the Rebirth ring. The WindowAsync near the top: "WindowAsync( 6, 4, 246 )", is where he says "What do you want, kupo?" I just can't seem to figure out how to alter the menu text.