Planet Blupi (1997) is now open source and free. (character also known as Eggbert)

[TylerF]

https://twitter.com/BlupiGames/status/906229672790425606

http://www.blupi.org/

Another game in the series, Speedy Blupi, was published as Speedy Eggbert by eGames, and sort of became cult classic in the early 2000s.