Good Game, Dustin! Shows potential for sure. A few ideas for you to take along with you on your journey, if you care to hear them, who knows could save your life one day, lol.
1) If you know your hammer is about to run out and a barrel is coming, then just stand still and rapidly tap the jump button. One of two things will happen. You will either smash the barrel with the hammer or if the hammer runs out then you will jump in the air and the barrel will run under you. Listen for the rapid tapping on other people's streams, this is why.
2) I don't know if you have seen my Rivet Training Video on my youtube account or not. I have it posted at the top of the high score list. Generally it is not a good idea to leave the top two rivets on the left, try to avoid this because it makes it more difficult in the long run. Especially when you were also grabbing the top hammer and smashing them on the left making them respawn on the right. This makes the final two top right rivets much more difficult.
3) You did well on timing the hammer grab on the top of the barrel stage, waiting for the on-coming barrel to hit kong's ladder, but as soon as you see a wild barrel that comes to the left, just adjust to the left abit and then right again and you should be fine.
4)Definitely don't try jumping over a frozen firefox, lol!
I see that you have a firm grasp of a lot of the fundamentals, and shows a lot of promise.
And since when do you have a Donkey Kong cabinet in your laundry room? You will have to show us some time to add a little more verification, showing the board, and the various parts. Shane did that one time and I thought it was a good idea for us to show our machines, more so for the newer players, and for myself who just got a cabinet. I actually assembled mine live so everyone knows exactly what I have. Besides, people love DK cabinets and I am sure they would like to get a look under the hood! Keep the scores coming!