The real question here is when will this pair stop falling.  It seems foolish to try to catch a falling knife at this point.  So the best strategy may be to wait for a pullback.  If the NZDUSD continues its push below .77 the next level of support could be year lows around .75.  Resistance above .77 now rest at .78.

Sup    .75

Pivot   .77

Res     .78