About 5 seconds into the game I was doing an embarrassing stank face at the soundtrack and was thrilled to hear the music change between levels. I also love that the projectiles from snakes and crabs show outside of the heartbeat radar, so you can really get a sense of where everything is in the arena.
It always seemed like Otto's shooting was going to sync up with the music but never quite seemed to sync up perfectly – this would be amazing, especially when everything speeds up later in the level!
Really enjoyed this game