Here is the full list of all 13 Dyflexion achievements.
Beat the game on novice difficulty.
Beat the game on veteran difficulty.
Beat the game on elite difficulty.
Complete training.
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 6 enemies with a single cannon.
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.