A cool idea would be manipulating the random chance mechanics —
Make it so meals are always extra tasty
Make it so Pokemon always only need 1 biscuit to befriend (like with a shiny Pokemon)
Bumping so potential mods can see!!
Bump!!
Another idea: an overlay that displays a Pokemon's stats during the feeding screen.
Ex. You tap on a pokemon to feed and it shows its nature, level, and skills, so you don't waste your time giving it biscuits if it isn't worth it.
・Berry gives Snorlax 999xp
・Increase in Dream Shard after sleeping
・x times more rank XP after sleeping
・Increased probability of Pokemon having rare skills
・The Pokémon team is always 100% energetic