Nice concept and style. I can imagine adding more commands and needed actions on more complicated levels. I also _wonder_ if having an 'up' arrow for older commands would feel good or if it's better to type out each command every time.
Option for more 'advanced' players or more complicated levels to allow multiple commands on one line with ',' representing a fixed delay? e.g. north,,,,east,,north,,,south Just some thoughts, looking forward to the next iteration.
Yeah I also think that I might add more commands, such as manipulators for the speed, or perhaps even a "pick up" command.
Regarding the up arrow thing, I'm not sure I will do that. I want to elicit that slight feeling of panic when a player approaches a wall and misspells a command. That's one of the reasons I didn't abbreviate the commands (N, S, E, W, for example).
Multiple commands might come in later, perhaps as a separate game mode, but not part of the main game.
Thanks for the suggestions!