Is the spear using the same code as the "sticky arrows"? It looked from the stream like sometimes it would show in the body after thrown and sometimes not. The times it didn't looked really odd when the person was still able to retrieve it.
The retrieval also looks a bit cheesy in general. You shouldn't be able to get the spear back instantly after a throw. The throw should be a decision made in desperation. The constant throw, retrieve, throw again just looked....off somehow. If I saw that game play video when deciding to purchase a game, it would not help me decide to buy the game. It just looked too gimmicky.
The retrieval also looks a bit cheesy in general. You shouldn't be able to get the spear back instantly after a throw. The throw should be a decision made in desperation. The constant throw, retrieve, throw again just looked....off somehow. If I saw that game play video when deciding to purchase a game, it would not help me decide to buy the game. It just looked too gimmicky.