The draw order was a headache (the obstacles were not hidden by the tunnel), at the end I draw all of them (tunnel + obstacles) as the same object, it solves a lot of things x)
The first time I ran this version on real hardware, the framerate was low (below 20fps), I've implemented sort of a LOD system for the tunnel and now I stay around 30fps, I think it will be my target (although the playdate can go up to 50)








