You can get an RPGM save editor from here
https://f95zone.to/threads/rpg-maker-save-editors.51/ (pick version 0.69)
When you run the editor it will ask you to open a file. You want to open a .rmmzsave file found in (whereveryouputthegame)\save
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Pick whichever of the file# saves you want.
In the "items" section of the save editor, set the value of 50:Worm Sachet to 1
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Close the save editor, and next time you load that save, you will have a worm sachet in the "key items" section of your inventory.
Using the item gives you this menu to choose how you want QTEs to work.
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