Here is the full list of all 13 Dyflexion achievements.
Complete training.
Destroy 6 enemies with a single cannon.
Beat the game on novice difficulty.
Beat the game on veteran difficulty.
Beat the game on elite difficulty.
Finish a game of survival mode.
Get to wave 5 in survival mode.
Get to wave 10 in survival mode.
Get to wave 15 in survival mode.
Destroy 8 enemies with a single cannon.
Destroy 10 enemies with a single cannon.
Destroy 15 enemies with a single deflect blaster.
Destroy 20 enemies with a signle deflect blaster.