Typically when I do it, I do the tasks like watering plants, feeding pets, etc. I also believe the point of house sitting is to make it appear occupied and busy, so I spend about an hour playing with the pets, watching tv, and cleaning up little messes

It’s not illegal or anything to develop games without the permission of the console manufacturer. The NES had a 40kb game release in 2019 called Micro Mages. The developers are entirely in the right.

The only problem I see is using 8x slots instead of 16x slots for double the storage