Yosaku was the first cartridge available for the Epoch Cassette Vision system.

It's a very original (and immoral) game where the player must cut down two trees with his axe, while avoiding all sort of hazard like wild pigs, agressives birds (launching eggs), snakes and falling branches.

There are several options proposed like "time attack" variations.

The gameplay seems surprisingly ok for such a limited system with blocky graphics.

Yosaku is in fact an adaptation from an obscure japanese arcade game from SNK, named also Yosaku and released in 1979. It is said to be the first videogame from SNK.