Let me ask differently.
Where is the line between AAA, AA and A and how can we distinguish them?
AAA games are high budget games like CoD, Tomb Raider, GTAV. AA games are mid budget games like State of Decay, Life is Strange, Crash Bandicoot remaster, and A games are low budget games like shovel knight and most other side scrolling indies.
Also for weaker platforms a game like Pokemon on the 3DS would be considered AAA on the 3ds since Pokemon has a high budget compared to other 3DS games.