diff --git a/game/collision.go b/game/collision.go
index c9e5b2b..c153648 100644
--- a/game/collision.go
+++ b/game/collision.go
@@ -11,6 +11,10 @@ func CheckShapeCollision(pos core.Vec2i8, shape *Shape, grid *Grid) bool {
 			continue
 		}
 
+		if block.X < 0 || block.X >= int8(grid.Width()) {
+			return true
+		}
+
 		// Check if the block collides with the bottom of the grid.
 		if block.Y >= int8(grid.Height()) {
 			return true