Thank you for playing, and for your feedback and play-through video! I apologize for the crashes; this time I hadn't been able to play through the game in a build outside of Unity until right near the end (and of course it didn't crash on my machine :D ), but I'll definitely make sure I get builds going earlier in future speedgames to check for crashes.
Also, I hope to make a crash-free version soon after the speedgame voting ends once changes are allowed again. In addition, I'd love to start working on a better version of the game outside of the three-day time restriction that has vastly improved code and addresses a number of the things you had concerns about since I also had many of those same concerns but had to triage them for other things. Hopefully I'll have some news about an improved version of the game soon!