just saw kirbymastah's and my damage boost only saves about 2 seconds on that so it would need to be 100% before taking seriously
Had to sign up as I love this game and the speed running community always look awesome, I am nowhere near as good as those currently running the game but I have found a tiny damage boost route adjustment which I notice isn't on current runs. Got nothing setup for video capture currently though, guess I could use my phone XD
I found it on my first 100% play through purely by accident. In the screen with the first teleporter in area 2 the current route has a bomb jump from the first platform but what you can do instead is jump to the second platform, wall jump off the bottom part of the left pillar up to the middle part, you then jump to lure the flying enemy down and then jump a second time into the enemy to damage boost up to the top under the first area 3 teleporter.
I ran it against the fastest attempt on that screen and it shaves about 6 seconds off when done perfectly and if missed and reattempted it saves about 2 seconds. I hit it first time about 80% but I am not very good so prob easier for others.
I commented this on with timestamp but if none of that made sense I'll publish my first ever youtube video.