This new version has the following changes:
1. 21 frames saved in B-3, since I found that I had wasted a frame rule due to my carelessness. This level has no extra frames that can be wasted. I get 1 frame improvement by stepping on the bullet bill stead of the lift, now it ties with electricpant's warps run.
2. I optimized the fire flower catching in A-4 by adjusting the subspeed, which reduced the slowdown during the podoboo stage. However, it can not reach the next frame rule.
3. There is a section at 3-2 where I must slow down, now I achieved a smoother deceleration by crouching while swimming, saving 8 frames. It doesn't save one more frame rule either, but it does make the movement appear faster visually.
4. I removed the repeated jumping and improved the sliding in 3-4 and 5-4, making the sound more harmonious.
5. 3 frames saved in the bowser rom of D-4 due to random changes.
So, compared to the previous version, 24 frames were saved in total.