You are the last intact core in a collapsing lattice. Hostile shards are phasing in from the perimeter.
Rotate your shield to intercept each shard before it strikes the core. Survive as long as you can while the storm intensifies.
Rotate the shield: use the left / right arrow keys, or drag your finger / mouse around the arena.
Block shards: align the glowing shield arc with incoming shards. A perfect intercept scores 1 point.
Protect the core: if a shard slips through and hits the core, you lose 1 integrity. At 0, the run ends.
The storm will escalate over time: shards spawn faster and from more angles. Last as long as you can.
Your shield fell under the shard storm. Review your run and re-engage when ready.