This Hugo franchise game is an edutainment game - its theme is about biology. Its gameplay is varied between stages. In one stage, you might be guiding a near-sighted swallow to eat some insects, while on another stage you'll be tasked to memorize all the shown animals in a correct order. Essentially, the stages are minigames with puzzle or puzzle-like elements included.
The stages are presented in a non-linear format, so you can enter in these stages anyway you like. There are 3 difficulty settings to choose from when beginning a new game.