Inner Space is just the platform on which IS Boxer runs.
It all depends on what you do with the platform.

IS Boxer is safe to use within games, if the game allows boxing.
It doesn't allow a user to input more then one action per keystroke.
And has no delays or timers for automatic actions while you are absent.
Numerous (not sure the user base) people have been using it for over a year, without any bans from its use.