This is what happens when I change 1 button press to save one frame from the start. (Boss 1 changed from a lot of luck to the rainbow spin)
Frames = 1260 - 1279 Last version
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Frames = 1260 - 1279
Newer version (One frame not so much saver)
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The slightest change in button pressing will screw you up at a later point in the game... I will use the one frame saver on the 100% because I will have more time to manipulate the level as a go and save people.
Edit: I should mention this, in 1-1 the 4th last enemy you can bypass by slipping through a tiny gap... it saves about 5-7 frames but it manipulates the 1st boss against what I need.