Not super terrible but not great
Gameplay is fairly simple; you switch back and forth to avoid the fire on that character's side. The only bad things I can really say about this game are that an ad plays every time you die, and the graphics aren't great. Anyone can make this type of game using Scratch, and the Fireboy and Watergirl aesthetic is distracting to say the least. If you want a mindless infinite runner to play, this isn't a bad option, but there are definitely better options with less ads.