Frogatto is a "platformer", or "jump-and-run" videogame.  Like many older
arcade/nintendo/sega titles, the world is viewed as a cross-section seen
from the side, and your character walks and jumps between solid platforms,
whilst avoiding being hurt by monsters.  It is not a clone of any specific
game; although just by being a platformer, it is impossible not to have
something in common with games like Mario or Sonic, but authors are trying
to innovate a bit.

Frogatto is also the protagonist's name.  It's eponymous.

WWW: http://www.frogatto.com/