Only two flaws.
1. Too short for me
2. Suggestion but I'd like a place where you can create your own levels in any available world theme, and tell the Virus what to do in the level.
but other than that this game is excellent. Love how the game is in the style of a real computer. Even the saws look like CD/DVD discs.
Wishing I could put spoilers for this part, but I've tried to make it so you can only access it if you click Read More.
I don't think I need to suggest a level editor anymore, I can just edit the layout of existing levels (downloaded version)
The final level's tiles randomly change into other worlds' tiles, to give a glitched effect, like the Virus is trying to break the machine. And once you complete this level, he even starts laughing as the computer breaks, like it was part of his master plan all along, as opposed to every other level where he just gets mad. It may not seem like much but these small details are sometimes perfect. (and I wonder if the icons in the background of the start screen are references to your other projects? haven't seen any of them but just curious) (Oh, and I wonder if the BSOD in the computer icon in the final level is a sort of warning/foreshadowing?)
Overall 10/10.