Google Pac-Maps. Worth every penny.
Oh, balls, there's a monster down that alley. Damn, they've just sprayed the entire world with green smoke so I can't see where they are. Let's wait here. Oh, you're screaming, better move..But where. Oh, hold on, the smoke's clearing. Arghhh...The furry monster that follows me everywhere once he's seen me is headed this way. Quick, into this alley. Oh, it's a dead-end. Back out the other..Balls, half of you have just run into a building to escape the tentacally thing. Do I wait or do I try to find some people to rescue who aren't so scared.
Put some power on..My cape flows out behind me like superman as I whizz around Trafalgar Square. Except I'm not. I'm a top-down dot that kinda looks like a person but isn't.
Like Pac-Man, Caterpillar and some other old-school run-around-picking-up-dots whilst trying to deposit them back to safety games, this is just great.
Cool, fun, engaging and never boring ('cos each "game" only takes between 3 and 8 minutes). Dip in and enjoy.
Worth every penny.