In my opinion, the player core movement seemed a little bit slow (although itdoesn't seem to affect too much). Also not really a problem but i was a bit confused on what to do with the folders and stuff, but eventually got it.
Honestly though, this anti virus idea is amazing and also quite fun to play. The graphics and artstyle is simplistic but nice looking.
Overall I would say this is a nice and fun game with a lot of potential!