As an introductory bullet hell game, this is actually very compelling. I definitely would not consider this to be an advanced bullet hell by any means, largely because the scoring system serves to simplify the game, in many cases , rather than make it more complex. After all, you are forced to follow the trail of coins, which means that the coinstream HAS to be relatively "safe." Long term upgrades reward players who spend a lot of time on the game, but I guess that's par for the course for a flash game.