underwater updates are always a warning sign and grounded 2 did it anyway

every game eventually looks at a perfectly good map and says what if movement was slower and the screen was blue. grounded 2 opening the pond is cool. i am not denying that. the whole tiny-person-in-a-backyard thing was basically asking for an underwater area from day one. but underwater gameplay has a very specific failure mode where exploring feels amazing for ten minutes and then you realize every trip needs extra gear, oxygen management and a route back to the surface. suddenly the cool new biome is errands with bubbles. if the new systems keep movement fast and the amphibious buggy is actually useful, great. if i spend half my session checking whether i packed the correct breathing item, the pond can keep its secrets.