LAG ISN'T COMPUTER BASED!
Sorry about that, its bandwidth, determined by how many people are on your network, your nic/router (If wireless)
and how many people are on the Internet around your physical location.
You can have the worlds most advanced computer, but if your neighbor is addicted to bit torrent, you fail it.
Don't hate on what you know nothing about Setari, the government was given plenty of money to fix the landline issue, they fail, not Shinki
Oh, and Shinki, a preloader for the songs would help immensely.
Here's why there are no badges.
1.No API (high score submitter).
2.Hints! This game is now effortless, aside from total completion, which is just time wasting (and for total completion, you must use the hint link).
But, argumentatively, a complete-within-X amount of seconds badge would be plausible if not for reason #1
 "Idleplex"){kind=icon}
 "Into Space 3: Xmas Story"){kind=icon}
 "ClickPLAY!"){kind=icon}
 "Balance of Tower"){kind=icon}
 "Closure"){kind=icon}
 "Trigger Ball"){kind=icon}
 "Don't Shit Your Pants"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 3"){kind=icon}
 "Submachine 3: the Loop"){kind=icon}
 "Achievement Unlocked"){kind=icon}