I wonder if sometimes it's on accident??? xD and they stuck with it :'3
the blue bulbasaur is really pretty
, but I would guess that they changed that one on purpose to be more distinct from the water-type coloration. /shrugs/. But I like that the blue bulbasaur was like a lily/aqua plant 'on top of the water' or something, before it got turned to greenish, because that was nice then <333