I know the developers probably never gonna hear this but i think it would be better that instead of spending money on karma you could buy accesoaries that allows you to customize your ninjas and you also have clan flag which is customizable. Also to keep the game from becoming repetetive you could add skill trees which allows every ninja to serve unique functions like one is a tank another damage dealer and one is a healer. Oh also it would be cool if you somehow could work guilds into the game too for example every month there would be a guild war on which guild could get the most wins.And lastly include more bosses and put an actual level cap. This is only some ideas but thumbs up if you agree
That might be because the game didn't work for any browser, this has been fixed now.