So yeah i've been poking around in this game to get and finally got some few improvements. Stage 2 need some more investigation. I Gain 1 frame in 2-2a and 1 frame in 2-2b but later lost again to get that jump ball in 2-2d at optimal position(subpixel i think). Improvement on first stage :- 3 frames , 1 frame on 1-1a , two frame on boss