It takes a little getting used to, but after that it feels quite straight forward. I'm not really sure how, but adding some complexity would be nice, maybe expand the "map", or add some other form of input.

Very interesting idea! A different approach to a Samurai game. With some small changes (like adding different types of balls, powerups and powerdowns, or events that slightly change the gameplay for a while) to make the game less repetitive could be a very entertaining game :)

Very fun game! But way too easy and no way to keep record if you have done better than last time because there is no score or time keeping track of your game.

The game is a little easy, perhaps add a second samurai with the arrow keys for example. Fun idea tho! Perhaps have certain enemies that require both samurais together to defeat.