Thank you for the feedback! I noticed severe framerate drop at +1m points as well. I assume it is due to many enemies off-screen as well. I will look into having dynamic sprites and other optimization strategies! As for the counter-intuitive strategy of going backwards I totally agree. It was not meant to be only playable using the cheese strategy. This is most definitely a balancing issue among other wierd quirks of the rushed game, hehe. Again thanks for playing!