Winnie the Pooh's Home Run Derby!

About

Winnie the Pooh's Home Run Derby is a 2008 Flash baseball video game published at the Walt Disney Company website. The player controls Pooh in order to compete in a home run derby contest, facing off against many other characters in the series as pitchers. The game won a cult following in early 2013 and became a viral hit due to its extreme difficulty, especially for a children's game.

Source: IGDB