Blazing Birds
12 Achievements
200
Xbox 360
Defender
Returned 20 Power Shots in a single match (Arcade mode only)
15
How to unlock the Defender achievement in Blazing Birds - Definitive Guide
Just play a match on hard difficulty. Every swing you get a new power-up, so just focus on blocking all his power shots. You will definitely get this if you try and beat hard.
You will get this during 1 of the 3 careers - probably on Hard. Just Return 20 power shots.