You have a decent amount of time to input the command so take your time to see what button you have to press to make sure you deflect the attack and score some koins.
However, if you do follow the on-screen commands in time you earn koins. There are also random enemy encounters that will likely startle you. There are quite a few areas that encompass the Krypt and some areas will be locked until you solve a puzzle or find a specific item in the Krypt that allows access to the area. Mortal Kombat X Revenant Costumes By indorbacul1984 Follow | Public