15. A computer-readable storage medium having embodied thereon a program, the program being executable by a processor to perform a method for training a user to execute a sequence of commands in a game environment by using voice control, the method comprising: determining a context based on a state of the game environment; displaying a menu of available commands based on the context; prompting the user to issue a vocal utterance associated with an available command from the menu of available commands; receiving a vocal utterance from the user; matching the received vocal utterance with an available command from the menu of available commands, whereby the matching of the vocal utterance with an available command selects the command; adding the selected command to a sequence of commands including commands selected since a previously executed complete command; and executing the sequence of commands when the sequence of commands forms a complete command.
15. A computer-readable storage medium having embodied thereon a program, the program being executable by a processor to perform a method for training a user to execute a sequence of commands in a game environment by using voice control, the method comprising: determining a context based on a state of the game environment; displaying a menu of available commands based on the context; prompting the user to issue a vocal utterance associated with an available command from the menu of available commands; receiving a vocal utterance from the user; matching the received vocal utterance with an available command from the menu of available commands, whereby the matching of the vocal utterance with an available command selects the command; adding the selected command to a sequence of commands including commands selected since a previously executed complete command; and executing the sequence of commands when the sequence of commands forms a complete command. 19. The computer-readable storage medium of claim 15 , wherein prompting the user to issue the vocal utterance includes displaying a visual prompt or emitting an audible prompt.