Good game, but there's a glitch on Level 10. From where you start, if you go up one room and walk to a specific point to the left of the plant in that room, you will somehow end up in the room above it.
Great game. 5/5 For those that think the infection doesn't go off (normally in the later levels), it's that you're clicking directly on one of the characters that can't be infected at first.
 "Magic Orbs"){kind=icon}
 "Romance Maker"){kind=icon}
 "Infectonator!"){kind=icon}