Funny game ! Feature creep haha.
At the end it goes very fast but it's still readable, congrats on that ! The feeling of speed is what makes a simple game like this fun. (Also, the gamedev jokes are always welcome after a gamejam lol)
Design-Wise, I always wonder why allow full 2D movement when 1 dimension is the only thing that's needed ? If there was trains or bonuses coming in from top to bottom sometimes it could incentivise you to take risks and advance to the right of the screen !