The game leaned heavily into the notion that even the smallest deviation of a launch angle can result in a major change of trajectory. This is compounded when forces such as velocity, weight, and gravity are entered into the mix.

Setting the launchers just once added a slight bit of tension to the decision making of the player. Is it too much or too little? This also let the player just sit back and enjoy the show. Whether they achieved a chain reaction or not, they still got treated to multiple fireworks exploding on their screen.

Each firework launches with the same weight and gravity scale. Velocity does have a slight randomness, just for varying heights in the explosions.

With gravity a factor on the firework, the actor constantly watches the velocity value, triggering an explosion when the velocity reaches 0.

During development, the question of when the game was over turned out to be pretty tricky. In a perfect game, the explosions are never ending, but how many explosions determine a successful versus failed attempt?

The "Crowd Reaction" meter was added for this reason. Each explosion, regardless of overlap, adds to the meter while there is a constant degradation tick. Filling the meter meant enough explosions with proper overlap to overcome the degradation tick, causing a perfectly acceptable grand finale. At this point, the player can continue to watch the show as long as they wanted before deciding to replay or quit. 

In between explosions a timer is triggered, counting down unless it is reset by another explosion. If this timer reaches 0, the game over dialog is shown and fireworks cease to launch.