I highly recommend playing with high-speed (200 FPS or more) Orbeez guns outdoors, ensuring a safe environment. Such guns (SplatRBall SRB1200, UnlocX V2, etc.) cover a long-range, which is more enjoyable outside of your home, e.g., field, backyard, and garden. On the other hand, low-speed guns, like Surge Gen 3 or Anstoy electric blaster, can also be used to play indoors (garage, basement, etc.).