When to Blow Someone Up: The Demo Decision Tree

Every Rocket League channel will teach you an air dribble. Almost none of them will tell you when it’s correct to delete a human being from the field. That’s the gap, so here it is: the actual decision tree for demos, written by people who have both won games with them and thrown games with them.

Real talk: A demo isn't an aggression stat. It's a trade. You are spending your position, your boost, and roughly two seconds of your own availability to remove one opponent for about two seconds. If the thing you bought is worth less than what you paid, you just griefed your own team with extra steps.

The one rule that governs everything

Demo the player who is about to matter, not the player who is annoying you.

That’s it. That’s the whole guide compressed. Everything below is just working out who’s about to matter.

The player about to matter is almost never the one currently touching the ball. It’s the one rotating into the position that beats you three seconds from now: the last man back, the guy collecting the corner boost he’s going to use to challenge your teammate, the one drifting toward the far post while the ball climbs.

Green light: demo here, every time

1. The last man back, while your teammate has possession

This is the highest-value demo in the game and it isn’t close. Your teammate is carrying up the wall or setting a shot, and there’s exactly one defender home. Remove him and the shot becomes a walk-in. Even a miss becomes a chance, because the follow-up has no one to beat.

Payment: your position (you were going to be useless behind the play anyway). Return: an open net. Take it every time.

2. Someone with 0–12 boost, in the corner, on your half

A demo respawns them at their own goal with 33 boost. That sounds like you helped them. You didn’t: you moved them out of a corner they were about to use to threaten you, and you cost them the four seconds it takes to get back to relevance. Against a low-boost opponent parked in a spot that hurts you, a demo is functionally a free clear.

3. Kickoff, when you’re going second-man

If you’re not contesting the kickoff, the far-side opponent cheating up is unguarded and driving in a straight line at a predictable speed. Straight lines are free demos. Landing one here turns a neutral kickoff into a 2v1 for the first six seconds of the play, the highest-leverage window of the entire possession.

4. When they’ve committed to an aerial and you can’t contest the ball

You cannot beat them to the ball. Fine. You can beat them to the landing. A car in the air on a fixed trajectory has no counterplay to a demo. This is the single most under-used demo in ranked, and it converts a lost defensive read into a full possession swing.

5. Overtime, on the last man, at any cost

In overtime, position math changes: there is no “later.” Every trade that removes a defender for two seconds is correct, because the game can end inside those two seconds. Go.

Red light: this is where demos lose games

Worth it

Last man, while your teammate attacks
An opponent stuck mid-air with no counterplay
Low-boost opponent sitting in a threatening corner
Overtime, on the defender

Griefing

Chasing a demo across the field with 80 boost
Demoing the ball-carrier while your net is empty
Revenge-demoing the guy who demoed you
Any demo that makes you third man on a counter

The chase demo

You lock onto someone, they dodge, you correct, they dodge again, and now you’ve spent 60 boost and four seconds crossing the field for nothing. Meanwhile the ball went the other way and your team is defending 1v2.

Rule: if your first attempt misses, the play is over. Rotate. Don’t correct. Don’t re-aim. One attempt, then you’re back in the game. This single discipline is worth more rank than any mechanic on this site.

The empty-net demo

You demo the ball carrier at midfield. Beautiful. The ball keeps rolling, because a demo doesn’t stop the ball, it stops the car, and now it’s rolling into your empty net while you’re respawn-adjacent and your teammate is in the corner.

Demoing the ball carrier is only correct if someone else on your team can immediately take the ball. Otherwise you removed the driver and left the vehicle running.

The revenge demo

They demoed you. You are now going to demo them. You will do this at a moment of your own choosing, which is to say, at the wrong moment, with the wrong boost, from the wrong position.

You are not making a decision anymore, you are settling a score. Your opponent got a free MMR donation the moment your ego took the wheel. See the MMR cost of tilt for what that actually runs you over a session.

How to actually land one

Mechanically, demos are simple and almost everyone still whiffs them.

You must be supersonic. Sub-supersonic contact is a bump, not a demo. You can hold supersonic without boost for a stretch after hitting it, which means you can hit supersonic early, cut boost, and coast into the target silently. A coasting demo is much harder to read than one with a boost flame screaming at you.
Lead the target. Aim at where their car is going, not where it is. Most missed demos are perfectly aimed at a spot the opponent left 0.2 seconds ago.
Come in off-axis. A head-on approach is the easiest thing in the game to dodge: one flip and they’re clear. Approach at 20–40° off their line and a single dodge no longer gets them out of the box.
Don’t telegraph. If you point at them from across the field, they will see it, because a car driving directly at another car is the most obvious thing on the pitch. Drive at a spot near them and correct late.
Ground demos beat air demos. Chasing someone into the air is a coin flip. Catching them on landing is not.

Real talk: A stable input matters more here than on almost any other mechanic, because a demo is a single committed line with no correction window. If your stick has a dead zone you're fighting or your trigger travel is mushy enough that you cut boost late, you'll drift off the line at exactly the wrong moment. That's one of the few places where gear genuinely shows up in the outcome, see is it your gear or is it you before you go spend money on it, though.

Defending demos

Same tree, read backwards.

Never drive in a straight line with boost when someone is behind you and supersonic. Small, constant direction changes make you nearly undemoable and cost you almost nothing.
Dodge late, not early. An early dodge just gives them time to re-aim. Dodge when they’re committed and roughly a car-length out.
If you’re the last man, assume you’re the target. That’s what this guide told them to do.
Getting demoed near your own net is survivable. Getting demoed while cheating up at midfield with 100 boost is a goal against. Adjust which risks you take by where you are.

The one-line version

Demo the last man while your teammate attacks. Demo anyone stuck in the air. Demo low-boost opponents out of dangerous corners. Miss once and rotate. Never demo out of spite.

Everything else is a montage clip that cost you a goal.

FAQ

Is demoing toxic?

No. It's a mechanic in the game with a cost and a payoff, same as a challenge. What's toxic is the chat message after it. Demo whoever you need to and say nothing.

Do I need supersonic to demo?

Yes. You have to be at supersonic speed for the contact to register as a demolition, otherwise you just bump them. Supersonic is a speed state, not a boost state: you can hold supersonic without boost for a while after you hit it, which is exactly what makes the coast-in demo work.

Why do my demos miss so much?

You're aiming at where they are instead of where they'll be, and you're arriving on the same plane. Aim at the point they're driving toward and come in slightly off-axis so a small dodge doesn't clear you.