Yeah, I agree! At one point I had the arena even smaller, so I definitely think at one point I thought "I need to make the arena bigger". I do think, especially towards the end of these sorts of games you do kind of end up pinned in place, but I think wave 13 definitely seems earlier than I intended. As for the crash, I don't think I did a great job of optimising performance (especially because of my spaghetti code) but I also think these games also have a natural stopping point (albeit not a crash haha). Thanks for the detailed feedback!