Each player wears a chest vest and carries a blaster. Pull the trigger and the blaster sends an invisible infrared beam — the same kind a TV remote uses. When it lands on the receiver on another player's vest, their lives count down on the vest and on their blaster. Three lives, and you're out of the round.

No. The orange tip is a marker, not a muzzle. Nothing leaves the blaster except an infrared beam you can't see, so there is nothing to collect afterwards and nothing that stings.

Two, four or eight, depending on the set. Every player has a blaster and a vest. Press team select to pick a colour — blue, red, green or yellow — and only opposing colours can score on you. That gives you head-to-head, two-a-side, a four-way free-for-all, or everyone against one. In the 8-player set, two players share each colour.

Single shot: nine shots, one life per hit — the long game. Machine gun and laser gun: six shots, two lives per hit. Plasma gun: one shot, and it takes all three lives at once. Pick a mode before the round and it changes how everyone plays — plasma makes people hide; single shot makes them run.

Anywhere with room to run and a few things to hide behind — a living room, a hallway, a basement, a garage. It looks best with the lights down, because the vests and blasters glow in their team colour. Clear line of sight matters: the beam has to reach the receiver on the vest.

Yes — that's the point. The vest strap adjusts, and three lives are three lives whoever is wearing them. Parents vs kids is the classic line-up; with the 8-player set there's room for grandparents and cousins as well. It's the family activity that doesn't need anyone to be talked into it.

The hit is an infrared beam, so there is nothing to catch, swallow or get stung by. Teach the one habit that matters — aim at the vest, not at faces — and keep the running to spaces where running is fine.

Each vest takes three AAA batteries, which aren't included — so a 4-player set needs twelve for the vests. The blaster has its own battery compartment in the grip. Stock up before the party.

Two players for a head-to-head pair. Four players for two-a-side or a four-way free-for-all, with all four colours in the box. Eight players for parties and cousins — two of each colour, four teams. The price per player drops as the set gets bigger, and the buy box shows the saving next to each pack.

It is the party plan. Hand out vests at the door, let everyone pick a colour, and the next hour sorts itself out. The 8-player set covers four teams of two; add the birthday kid's friends in rounds if there are more.

About a minute. Batteries in, power button on the blaster and the vest, pick a team colour on each, done. There's no screen in the setup — the controls are buttons on the gear.

Tracked shipping is a flat $3.98 (US dollars) on every order, to every country we ship to. We pack orders in 1 to 2 business days, and delivery usually takes about 5 business days after that. You'll get tracking by email as soon as it ships. Buying it for a party? Order a little early to be safe.

If anything arrives broken or stops working, email support@nexora.com with a photo or a short clip. We'll replace it or refund you, and we pay the postage both ways. If it's just not for you, you have 180 days to send it back for a refund. You don't have to explain why.