Great game! Here's some bugs i noticed (SPOILERS, maybe):
-the newest update made it so that semi-frequently, one of the "duo event" NPCs spawns somewhere else - resulting in things like Silver talking to thin air, or N and Wally yelling at each other from different rooms (which is kinda funny, so not a high-priority fix).
-the music still fails to loop, like, at all (playing on Opera GX)
-running gets occasionally disabled (such as after beating the champion)
-the one time i used the save feature, it didn't work at all - in fact, it even undid me buying the starter set i used for the run, un-unlocking it and refunding my bp.
-In M2 mode, your levels are sometimes different from your opponents - sometimes in your favor, but other times you get doomed by having your entire team be 2 levels below the opponent's.
Now, for some fun stuff i believe should NOT be fixed:
-Grabbing the letter post-champion spawns the Team Rocket event upstairs: it's actually kinda nice, like you're in with the TR conspiracy all along, letting you grab an extra AP up - or some more exp.
-A certain pokemon with Transform keeps it's old ability while gaining the new one - had a lot of fun with transforming into my Megido Fairy(?), getting both Dia and Barrier and lots of PP. D-F is fun!
-Also, you can Transform into yourself for virtually infinite PP/HP/AP.
Now, as for what i'd love to see in the future... well, this game has a ton of fun and unique Pokemon Cards, i just wish i could use that Golden Azumarill for longer than 1/3rd of a run. I'd love a more.. meta-progression based mode? I'd say.. basically a normal run, instead of starter packs, you get to pick any six cards you've unlocked (re-using the VS UI) - and you unlock cards by having them at the end of your run, or maybe a rework of the card shop?
Perhaps a currency split, where the card shop uses BP for boosters/cards (you can still sell cards for cash, but your 'starters' give way less), while the cafe works as normal - with buffs only lasting one run. This way, you can slowly assemble your dream team -and maybe include some tougher battles, maybe higher difficulties that just give opponents stat boosts in exchange for more BP?