It's a shame you couldn't get past the test scene, because what you did is well done, without bugs. The large game file size is Gdevelop's fault, not yours. It's basically a web game with a browser attached.
yeah shame, also thanks, the day after i posted i started studyng about the Gdevelop compiler and discovered that it's compiler uses 180mb! thanks a lot, i tried my best at that inventory, lol,