Pekka Kana is a platformer game, present in the childhood of many people.
The most popular release of the game is Pekka Kana 2. (2003, Pistegamez) 

The games are free and some of them allow people to make their custom episodes. You can find people making Pekka Kana fangames and custom levels to this day. Some people even talk about making Pekka Kana 3 by themselves, but nothing is confirmed yet so don't keep your hopes high.