Thanks everyone for your thoughtful comments!
(@mmason) The difficulty ramps up based on how much "overage" you get while playing. Each time through your deck, you need to get more Delight points than the last time through, so if you really jack up your Delight on a pass, then that will be the baseline for the next level.
(@nilead) Glad you like it. I would like to polish up a game based on this for mobile - I think it would work really well, too. I had this idea for a special kind of deck builder where you use all your cards at once, and the "Small World" theme really drove home for me how that could work. I think I can repurpose the mechanics for a different theme, since "people who like the Small World ride's history" is a pretty niche audience. Heh. I've got some other past game jam games I need to finish polishing up first, though!
(@jackyjjc) Glad you like the game, and some good points/suggestions. Yeah, it was all done by me in the 48 hours. I cannibalized some code from other sources and Stack Overflow here and there, but the game logic, UI, rules, graphics, etc., were all done in the 48 hours. The thing that took the most time, probably was the UI and the card designs. The graphics were all done in Flash, which is a terrible coding environment, but a great cartooning environment. It took a while to get the base doll looking right, but once I did, I was able to largely copy-paste it and tweak it to make all the other dolls. Everything else was pretty simple, art-wise. The game mechanics I fleshed out using index cards before sitting down and starting coding, so I had a pretty clear idea of how it would all work before I even got started, which helped immensely.
Regarding the source code, I don't have a formal GitHub repository or anything, just a .zip file ready to go on my server when there's a place I can enter it in the ldjam.com interface to associate it with my game. (Is there a way to do this yet? I don't see one. But I think I'm missing some stuff, since everyone else's game seems to list their game's platforms on Feedback Friends, and mine just says, "Unknown". I'm not sure how I'm supposed to be specifying this info about my game...) Anyway, as this is an HTML5 game, all the source code is viewable right in your browser - I don't obfuscate it or anything - so if you're interested in peeking under the hood, just "view source".
(@automatonvx) Yeah, I would have liked to get in an interactive tutorial, but, well, 48 hours. The game is a bit difficult to get into because it's so different than most card games - even most "deckbuilder" games - so it really could benefit with some onboarding polish. Maybe in a post-compo version!