Heh, pretty cute. There was one normal person who's stop was on the top floor and I refused to let him off, making him endure an endless onslaught of terrible game ideas.
YES, this is exactly the kind of game that makes me crave an endless mode. Maybe have arenas where you can use the rocks as pinball bumpers to give your guy a little extra spring at the cost of his sword length. Maybe a little negative space area outside the arena where you just run around cutting the grass in a field seeing how big you can grow your sword and practicing tactics. This could be a really awesome game you should totally follow up on it.
