Super Hunchback on GB, a regular platformer. You only need to reach the bell at the end of the screen. There are some things I don't understand about the game, seemingly certain projectiles are on some kind of full game global timer? They varied run to run so I'm not sure if it's global or not. There are also warp zones that appear, I'm forced to enter one at the start of Stage 5, but I think you can somehow manipulate them to not be in your way. Collecting the letters EXTRA will give you another life, idk if taking deaths to make the score countdown lower is potentially faster.
The skip on the final area of Stage 6, that I use a cannonball for, can be done by just making jumps, but they were a little too tight for me. The platform cycle at the start of the last area of Stage 7 can be made by not slowing down, but not knowing where the fireballs were going to be made it risky to go for.
Nice set of maps for every level -
http://radiopoultry.com/oldgames/maps/SuperHunchback/
RTA run -
https://www.youtube.com/watch?v=nvdlLiz_J1A