Since I am also making a somewhat-pokemon game, some comments on your take of Pallet Town~
Funny Stuff
Always Reject Unsolicited Calls - If you keep rejecting the call from Seed the game goes into an endless loop of you rejecting calls
Bugs
If you go into the Kusomon panel immediately after Seed's call, you are stuck because you have no shitmons. Make a switch here to have Seed say "This isn't time." and turn it off after you get your first mon. You also get stuck on the tutorial battle if you click mons because of the same reason.
Flavor
Should the types really be displayed? - It's kinda intimidating to think about pokemon types as your first mon, it might be better display the main type and let player discover the surprise. (perhaps that's why they don't display types at all in the mainline games)
Mechanical
For smoother gameplay: Menu screen should close after clicking save
Gameplay
If you pick grass you are severely weak to bug type, the old man immediately after tutorial just NTRs you. I couldn't get past this part, sorry! Monk also crashes game infrequently, unsure how to reproduce.