Quite a solid idea here - instructions are pretty clear and concise. I couldn't really feel much of an effect from the upgrade system - was it functioning? I encountered a pretty funny bug towards the end of my play session where the tree that was planted kind of freaked out and turned into this stretchy abyss spanning the entire map. Not ENTIRELY sure how I caused it but I think it had to do with me colliding with a red balloon right before hitting the ground.