Last night, I updated the game. This update mainly contains several bug fixes and a few balancing issues. The largest change is a new fullscreen script. Now, if you want to fullscreen, you can hit F5 or F6 to toggle between different modes. You can still hit alt+enter to go into the old fullscreen if you prefer that. The current build ID should be 3018191.
The biggest issue that still remains is the Large Sprite Fix error. I'm hoping that the new fullscreen options fix that, but I'm thinking that they might not. I'm trying to isolate what's causing that. My roommate was one of the testers, and he got this issue a few times at different moments, and his computer is better than mine, so it's likely not an issue with your specs, but it might be related to particular graphics cards or possibly higher-refresh monitors. Regardless, that's the major thing on my radar right now, so, if that's happening to you, any information you can give me on that would be very helpful.
I've been trying to remain diligent while addressing the bugs that have been popping up. So, if anything is amiss, make sure to let me know. Thanks for playing Jimmy, and I hope you're enjoying it so far!