Tomorrow will be the Spring Festival in China so we choose to submit this TAS today .
Stage 1 and 2 :No improvement.
Stage 3 : 2 frames faster but due to the frame rule before the boss, the improvement remains 0.
Stage 4 : 3 frames faster before the boss fight, 4 frames faster in the boss fight. 7 frames in total.
Stage 5 : No improvement. But because of the frame rule in the first tank, total improvement becomes 8 frames.
Stage 6 : 1 more pause, 2 frames slower. 6 frames in total.
Stage 7 : Destroying one more wall and saveing 5 frames. 1 frame faster by using bullets kill a wall instead of using B. 1 frame faster in the boss fight. 13 frames in total.
Stage 8 : 1 frame faster at the fitst boss, 4 frames fater at the last boss. 18 frames in total.