Simplefied.

Author: ChrisAcrobat

arena.js

@@ -395,12 +395,11 @@ function tick(){
 			let occupiedBy = space.getOccupiedBy();
 			if(occupiedBy !== null){
 				switch(occupiedBy.constructor.name){
+					case 'TrailingBody':
+						occupiedBy = occupiedBy.getHead();
 					case 'SolidWorm':
 						occupiedBy.kill();
 						break;
-					case 'TrailingBody':
-						occupiedBy.getHead().kill();
-						break;
 				}
 			}
 			if(occupiedBy === null || occupiedBy.constructor.name !== 'Wall'){