Parents don't have a thing to worry about. In fact, the game's bizarre intro sequence features a real-life family sitting around a TV and enjoying the game. The enjoyment portrayed is entirely fictitious, but the game's family slant is not. It may bore your kids into submission, but there's no language, violence or sexual content to be concerned about.
Gamers in general shouldn't bother. Fantavision is a boring tech demo disguised as a game, and probably won't even keep the average person busy for more than twenty minutes.
Puzzle gamers aren't missing out on anything. The onscreen visuals become quite chaotic, and the game is basically a jazzed-up version of Missile Command crossed with Connect-The-Dots, minus the fun.
Fireworks fanatics can watch the dazzling, colorful effects until the cows come home since Fantavision is the only game I can think of that features rockets stuffed with gunpowder and chemicals as the main attraction.
Hearing Impaired gamers should be warned that the game's tutorial is presented in spoken English which may present problems if you intend to play it for longer than ten minutes, which is doubtful.