I think the final boss ship (the dreadnaught) should give out more ninja coins. The reason is, some players beat the boss but are still ranked low because they were unlucky with the chamber of fortune. If a player beats the final boss, it seems fair that they should be ranked higher than a player that didn’t beat it. And you can tell a player lost at least one battle because otherwise their coin count would be a multiple of 50, so that means they’d hit 30 battles before taking on the final boss. This would be fixed by simply increasing the coins gotten for beating the final boss.