Yes and final/fully version is even bigger. That's why because almost 30 levels, some of them are big and also 3 open world where are lot of stuff that makes project very big.
And because there are open worlds and few bigger levels that's why project is big. I try to make it more smaller. And itch.io version is older beta version where are missing newest/best levels. Also newest version has some polished stuff and settings menus
Itch.io version is some kind of beta version which has uploaded to service several months ago. It has 10 level missing and 1 open world. Also that version hasn't polished every stuff