diff --git a/src/game-v4.js b/src/game-v4.js
index 8f25a6e..8bc2637 100644
--- a/src/game-v4.js
+++ b/src/game-v4.js
@@ -206,7 +206,8 @@ class GameScene extends Phaser.Scene {
       obstacle.body.setCircle(island.radius);
 
       this.physics.add.collider(this.player, obstacle, () => {
-        this.playerSpeed *= 0.7;
+        this.playerSpeed = 0;
+        this.player.setVelocity(0, 0);
       });
       this.physics.add.collider(this.pirates, obstacle);
       this.physics.add.overlap(
diff --git a/tests/wiring.test.mjs b/tests/wiring.test.mjs
index 469c706..954ffa0 100644
--- a/tests/wiring.test.mjs
+++ b/tests/wiring.test.mjs
@@ -230,7 +230,7 @@ test('player propulsion smoke emits at world engine positions with per-particle
   assert.doesNotMatch(source, /this\.playerSmoke\.setParticleSpeed\(/);
 });
 
-test('environment physics adds wind, island collision, turbulence, and projectile interaction', async () => {
+test('environment physics adds wind, hard island collision, turbulence, and projectile interaction', async () => {
   const source = await read('src/game-v4.js');
 
   assert.match(source, /ENVIRONMENT_ISLANDS/);
@@ -239,7 +239,7 @@ test('environment physics adds wind, island collision, turbulence, and projectil
   assert.match(source, /this\.createEnvironmentPhysics\(\)/);
   assert.match(source, /this\.physics\.add\.staticImage/);
   assert.match(source, /obstacle\.body\.setCircle\(island\.radius\)/);
-  assert.match(source, /this\.physics\.add\.collider\(this\.player, obstacle/);
+  assert.match(source, /this\.physics\.add\.collider\(this\.player, obstacle, \(\) => \{[\s\S]*?this\.playerSpeed = 0;[\s\S]*?this\.player\.setVelocity\(0, 0\);/);
   assert.match(source, /this\.physics\.add\.collider\(this\.pirates, obstacle\)/);
   assert.match(source, /this\.physics\.add\.overlap\(\s*this\.playerShots,[\s\S]*?this\.hitEnvironmentProjectile/);
   assert.match(source, /this\.environmentWind = environmentWindAt\(\{/);