Wow thanks a lot for your detailed review !
You're absolutely right for the optical illusion it's just a question of camera positionning and the fact that this is orthographic view, so there are no distance effect.
Unfortunately yes, there are some collisions missing, and the ship is one of them x)
For the "jump to exit" i realised just after submitting that this was confusing, but i couldn't change it anyway my bad !
Thanks again for playing and for your review i really appreciate that :D