>>53619225GTI gets pretty dark at some points
https://www.youtube.com/watch?v=UoLzJ9DJJEkhttps://www.youtube.com/watch?v=cUh_K8JgL_AJust a shame it was bogged down by poor technical choices (hallway dungeons), half-baked mechanics that seem fun on the surface but are a real pain (Paradise building), limited pokemon roster, etc.
Still my favorite of the series though, best side characters, best partner, best music, etc.
The other ones can get pretty wild too, you get an unironic lynch mob that runs you out of town and tries to kill you in Rescue Team/DX, the whole thing with Explorers as mentioned here
>>53619211 (and more besides, the whole side stories bit with the future pokemon even though Arceus just sort of ruins the whole message of it in the end), Super has the parts I've already mentioned. I think Adventure Squad is the only one without its rather dark moments, but even then it has some creepy NPCs like pic related