i cannot jump onto first platform. also game lags a bit. problem might be with GDevelops platforming physics which sux. It is not only nondeterministic but also leads to glitches. When i was making GDevelop game i instantly spotted it and avoided maing game around it.
EDIT: if only you could write platforming yourself, not use this shitty platform physics of GDevelop. My PC is kinda slow but that does not mean that game has to work like that on slower PC.
EDIT2: i decided to raise the score, because problem seems to be only on low end pc. i am not a douchebag, and wont be.