Click Launch or press Space
This 2D companion drives the same kinematic shell-launch-and-burst mechanic as the 3D version on a flat canvas: shells climb to a randomly rolled apex height at a launch speed computed from that height and gravity, explode into a few hundred gravity-and-drag particles in sphere, ring or willow patterns, and drop a handful of embers that bounce once on the ground and fade — with sliders for burst size and gravity strength plus Auto-Launch and Show Debris toggles.