I wasn't aware gdevelop was capable of any 3d, cool.
as the others said, sides and bottom of platforms killing the player is a bit weird, and the leap of faith on level 2 is pure evil xd
I didn't manage to get past level 3 since the character acts weird when they're above moving platforms
the timer doesn't reset when restarting a level but I guess that's a minor issue
still, I've checked out your other games and I see you're playing around making stuff and that's always nice to see (btw I've seen that the timer issue is also present in your other game, "hot summer day" xd)
good luck m8!