Overall, I like your play. For example, I like your flat call in early play with the KQ off. No need to get crazy and raise there. There were, however, a few plays I disagreed with.
1. The play disliked the most was your raise from the big blind with the 77. Too often what happens is you get called, c-bet a flop with overs, and are called/re-raised. The reason for this is some players play tight passive poker in the early stages of STTs, even limping in with AK. Obviously, with the move you lost 1/3 of your stack, and that could have been easily avoided. With higher blinds this play could be smart, but not with such small blinds.
2. I wasn't certain about your push with the K8. Although it worked, there are other factors I would like to examine. The blinds were 60/120, making your M zone about 6, dangerously close to the red zone. Also another important consideration is the UTG limper. The old saying goes "fear the limper," so you cannot immediately discount his hand. However, given the situation with your M zone being so low, I find this push too be necessary because it has a high change of taking the pot down preflop. I agree with it. I just hoped you went through all that analysis before you pushed
3. Finally your push with the 10 9 towards the end was questionable. Although it was folded to you with an M of under 3, I would have folded here for a couple of reasons. The first reason being that there is no small blind. Those extra 200 chips make a huge difference At this stage, when you are short stacked you want your pushes to get as much respect as possible. Every push you make gives your future pushes less and less respect. Therefore I would fold and wait for a spot where there is 600 chips waiting for you in the middle. Also, another key factor that would lead to my folding would be the big blind. He is the hands-down chip leader, and can easily afford a call. By pushing you are giving him nearly 2/1 odds
to call. Most decent players would make this call with a wide range of hands. However the fact that you have him pegged as a mouse could alter this fact. The tough part is the next big blind is short stacked, and nearly pot committed his next big blind. However, I still think waiting for the next hand to push would have been a better path. This is definitely arguable though.
Obviously, you can do nothing directly about the hand you got out on. However, if you didn't push the hand before, maybe he would have folded the sixes. Who knows???