Nitrome does it again with its latest entry, Scribble. This drawing-based arcade action game is a little bit platformer and a whole lot of Lemmings. Use the mouse to draw paths to get your little "blots" from start to finish flag with the fewest of casualties. Each level's finish flag indicates how many blots must escape to unlock and move on to the next level.
And just like Lemmings, blots don't really care about where they're headed, they just keep walking forward until something blocks their path and forces them to do an about-face. Knowing this, use your limited ink to draw ramps, bridges, and other mechanisms to help your blots arrive safely at the finish line.