I have known that the trigger for the text boxes in Stage one happen when u get a certain distance from the Jelly Fish, It is skippable if you don't get within that distance, but the time it takes to manuver around the Jelly fish and wait for them to get out of your way is just too long and inconsistent. On top of that, the Text box will still come up in later stages, so you have to continue avoiding JellyFish to actually get the Textbox Skip.

Here is a great example of what triggers that text box. I get all the way to the last stage that has Jelly Fish and just barely missed getting by.

This has me curious if 2 Text Box sequences triggered at the same time if that could glitch the game out some how, like cause a wrong warp to credits or something, I would love to test it out, or have a TAS try and mess around with that