Sorry to hear that. The game should create a log file (retroactive.log) in your AppData folder (just type in %localappdata% in windows search box to find it quick on windows or go to -probably- $HOME/.local/share or /usr/share/ on Linux). If you'd share that log I'll know what went wrong, alternatively you can run it from source and paste the trackback printed to the console- should be the same as the log file.

You'll probably have to wait till January for the fix.  

Well, not polished enough if there's a game breaking bug still in. I discovered it after uploading the game, a bit too late to fix - you can always restart the game, so it's not that bad. As for the theme - it's 'meta'. I went for present as the act of presenting something (new?) and that's what the game is - a glorified, interactive intro, a presentation. I could have just made the enemies presents and call it something like 'No Presents for Christmas' to fit the theme better, but would that make the game better? Nah.

Anyways, thanks for commenting, and thanks for playing, I hope You like it!