Yes, wrong answers at this point do prevent reaching the max size. Thank you for pointing out the looping bug at the end as well; it is supposed to just go to the title screen after that. Will fix in the next update. :)
Hi there! I'm a little confused because that's about how big the text appears for me! Sorry the text size is giving you trouble. I will try to adjust it in future releases.
This was great--I had a lot of fun. I was struggling for a bit until I figured out the character strafes when you hold down the fire button. Helps a lot when managing corners.