$Freeroll NLHE MTT Turbo: 2 pair correct play?

I'm on CO with

UTG folds
UTG+1 folds
MP 1 folds
MP 2 folds
HJ calls $60
CO calls $60
BTN folds
SB folds
BB raises $120 to $180
HJ calls $120
CO calls $120

Pot $570
-------------------------
Flop

BB checks
HJ bets $600



Click the spoiler tag to see what I decided to do.

it's a dangerous flop, find 3 players

I think you played correctly post-flop.
Pot-sized bet by HJ suggests he wants to protect his equity on a semi-wet board so definitely put him on QJ+ or random bluff hands and check-raised as you did.

But I am not sure if you should limp here as BB could have raised larger pre-flop to attack limpers and you could be facing a more difficult spot whether to continue with 67s.

I like it.

Varying up your game is good. Best be sure to also limp in with pocket 10s+

If you dont want to do that, be ready to call 3 bets with that limp.

If you are not, You are playing to readable of a game

Need some BBs info here but BET/ALL IN so basically if he check raises you here, go ahead and reraise all in. I imagine this somewhere between 30bb and 50bb so if you can get it all here try.

If he calls, bet on the turn and bet on the river.

EDIT - just looked at results, see, he is never letting go of one pair there, and DO NOT FOLD ON THE RIVER IF THE FLUSH CARD HITS!!! esp if villan X/C X/C JAM = CALL