SEGA Superstars Tennis
45 Achievements
1,000
20-25h
Xbox 360
After Burner
Hit a serve over 100mph / 160kph
20
How to unlock the After Burner achievement in SEGA Superstars Tennis - Definitive Guide
x2i
TrueAchievements
TrueAchievements
Pretty easy to get and you should get it quite early on in the game - Simply hit a perfect serve and it should unlock this achievement!
NumberUno
To get this all you really have to do is hit a Perfect Serve. To do this hit the 
or 
button to start your serve, and when the 5 stars fill up on the screen, hit the or button again. This will give you a perfect serve and get you the maximum speed.
