diff --git a/app/nose/bin/tetris.ts b/app/nose/bin/tetris.ts
index 4b160d0..b61846a 100644
--- a/app/nose/bin/tetris.ts
+++ b/app/nose/bin/tetris.ts
@@ -1,4 +1,9 @@
 /// <reference lib="dom" />
+// A classic.
+//
+// Arrow keys move your tetrinome.
+// Space bar rotates.
+// Enter pauses the game.
 export const game = true
 
 import type { GameContext, InputState } from "@/shared/game"
@@ -219,7 +224,7 @@ export function update(_delta: number, input: InputState) {
   if (++moveTick % MOVE_TICK === 0)
     detectMovement(input)
 
-  if (++downTick % DOWN_TICK === 0)
+  if (++downTick % downTickForScore() === 0)
     if (!collision(player.x, player.y + 1, player.rotation)) {
       player.y++
     }
@@ -300,6 +305,10 @@ function findFullRows(): number[] {
   return rows
 }
 
+function downTickForScore(): number {
+  return Math.max(1, DOWN_TICK - Math.floor(score / 1000))
+}
+
 function removeClearedLines() {
   const newGrid: string[][] = []
   score += LINE_SCORES[clearedLines.length - 1] || 0