Pocket 99 - Overplayed?

PokerStars No-Limit Hold'em Tourney, Big Blind is t20 (9 handed) Bison hand converter

UTG (t1480)
UTG+1 (t1420)
MP1 (t1440)
MP2 (t1300)
MP3 (t2000)
CO (t1660)
Hero (t1540)
SB (t1460)
BB (t1200)

Preflop: Hero is Button with 9[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/diamond.gif[/img].
UTG calls t20, UTG+1 calls t20, MP1 calls t20, MP2 calls t20, <font color="#666666">1 fold</font>, CO calls t20, <font color="#CC3333">Hero raises to t140</font>, <font color="#666666">2 folds</font>, UTG folds, UTG+1 folds, MP1 calls t120, MP2 calls t120, CO calls t120.

Flop: (t630) 8[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
MP1 checks, MP2 checks, CO checks, <font color="#CC3333">Hero bets t520</font>, MP1 calls t520, MP2 calls t520, CO folds.

Turn: (t2190) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
MP1 checks, MP2 checks, <font color="#CC3333">Hero bets t880 (All-In)</font>, MP1 calls t780 (All-In), MP2 calls t640 (All-In).

River: (t4490) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players, 3 all-in)</font>

Final Pot: t4490

Results in white below: <font color="#FFFFFF">
MP1 has Kd 4d (one pair, twos).
MP2 has 4h 5h (one pair, twos).
Hero has 9s 9d (full house, nines full of twos).
Outcome: Hero wins t4490. </font>