I have recently learned to program on the NES, please keep the scope lower, I have 4 3-color palletes to work with here, so some may look worse than the original game, if you have your own idea, please don't post it here, this place is for me to learn the ins and outs of the NES, and I figured Id post it here because its easy for people to think of 8-bit style games, and I'm okay with not making my own stuff for a while, and then after I learn more, Ill try to make more of my own games!

bye for a line!

Hi, not sure how I can help but many games in pico-8 focus on singlescreen arcade games with focus on high-score. Mostly due to map size limitations or even just because it's easier to develop.
If basic arcade or platformer does not interest you, you can look up for some genres that doesn't exist on a nes like survival or roguelikes since thoses are easier to make in scope and only requires some proper planning and design to make.
Hope it helps.

This is Pico-8, not NesDev.

are you looking for simple ideas to get started or something original and more challenging?