Cool and short story to go on an adventure =)
The jump mechanic is nice (longer press = higher jump), but it feels more like pumpkin dude is jetpacking rather than jumping. A little more tweak on gravity would give a better feel of the jump imo.
I guess the S pickups augments movespeed, right? This is an interesting mechanic here that would deserve more digging.
The background are nince and add nice touch to the overall and the music is cool.
Keep gamemaking!