This shows most of the final stage practice. I ended up playing what seems to be a corrupted ROM of the game as the final boss did not die. I managed to survive for 1 minute 40 seconds on my best attempt until the timer ran out and the final boss still would not die. He is supposed to die in a few hits. So in the next video I cheat my way back through the newest ROM of the game using save and load states, then do the final stage legit and the boss dies as he is supposed to. The game took longer to beat my second time through as a result. My first time beating this was in 2014.