As it kills each new prey it morphs and grows depending on the human or animal it eats all leading up to its gory conclusion. Players must touch the screen in various spots to activate the puzzle hotpots that help guide the little killer slug through each level. Each one pops up as text when selected and needs to be activated in the right order or it won't work.
This is a neat game to kill time with and you won't be disappointed. The graphics are stunning and game play is smooth. My only complaint is that it's too short with not enough levels. Most people will probably finish in no time flat unlike me who had to consult some walkthroughs to pass the extremely tough kitchen level.
I must warn you this is not for the faint at heart. If you have trouble with images of blood and gore than this is definitely not for you. However, I did find this to be a fun, quick, and irritating game at times. As a twist, it comes with more than one ending. Think of it like those old choose your adventure novels we read as kids. The final chapter allows for at least two endings. I'm not going to spoil it for you so you'll have to figure them out for yourself.
Did I mention it's absolutely free? Check it out today at BlackBerry App World.