The game IS playable from start to finish, there is no need for any launch option but it crashes after the first underwater level. In order to progress, after finishing "hostile reef" (first underwater level), when the game asks you if you want to continue ("load next level") or return to hub world, select "return to hub". Then, in the hub world, talk to firefly(or whatever that is) that lets you choose which level you want to play and select "Deep Ocean" level. From this point, game works great.