Hi again! Thanks, again, for the continued feedback. For my next game I'll be thinking "find that apple". :)
As for the source code, it's already available here as a free download - that .p8 file is all you need. You'll end up needing to buy Pico-8 (which is toooooootally worth the money) to really be able to edit sprites and sounds, but you can also just open that .p8 file in your text editor and can edit the Lua script without owning Pico-8. Also, if you buy Pico-8, you can find the game in "splore" mode and do whatever you want with it from there as well. The version playable from the Pico-8 "console" is identical except that it tracks your high score for you. Let me know if you end up messing with it! I'd love to see what you do.
Hey! I hope all is going well for you. I just wanted to point out that there's a Fantasy Console Game Jam just about to start. I thought maybe you'd be interested in trying your hand at Pico-8, or some other similar platform! I plan on giving it a shot again. Maybe I can make something slightly better this time. :) https://itch.io/jam/fantasy-console-game-jam-2