I'm really glad to hear that you enjoyed the mechanics! Initially, the idea was to make something like a "rage" game with simple controls. I'm not sure that's what I ended up actually doing tho lol. As for vertical movement, I think you're absolutely right. I'll look into adjusting the movement. If not the movement itself, perhaps I'll adjust the "camera" to allow for more time to react to obstacles.
I really appreciate your feedback. Sincerely thank you for playing!
EDIT: I've increased the viewing distance on larger levels, hopefully solving the issues with vertical movement :)