Thank you!
Yes, the levels get much trickier, and go up to 10w x 11h. Each world increases the size bit by bit :)
Good point about using the B button! I’ll add that in for sure.
The game uses battery-backed saving, in memory addresses $6000 for the level and world index. Running the game again should start you in the same spot, assuming your emulator has the right directory set up for reading and saving that data.
I was thinking of adding box art and a game manual, but shied away from it so far because I’m not much of a graphic designer haha. I think I’ll try it out though!
Thanks again! :)