Deep: Final Mission is a static, underwater single-screen shooter developed by Sachen, a company out of Asia that was both notorious and prolific for the number of unlicensed Famicom/NES and Game Boy games that they released, as well as their system [...]
4 -in 1 Volume 9 was the ninth volume of 4-in-1 multicarts made by Sachen. It contains: Zipball, Small Gorilla, Crazy Burger, and Deep: Final Mission. 4-in-1 Version 9
4 -in 1 Volume 4 was the fourth volume of 4-in-1 multicarts made by Sachen. It contains: Pile Wonder, Snake Roy, Suleiman’s Treasure, and Puppet Knight.
4 -in 1 Volume 3, also known as Commin 4-in-1, was the third volume of 4-in-1 multicarts made by Sachen. It contains: Taiwan’s Mahjong, Japan’s Mahjong, Hong Kong’s Mahjung, and Store Tris 2.
The story goes, that Skalman has invented a time machine and together with Bamse and Lille Skutt they travel 75 million years back in time to the age of the dinosaurs. But the mischievous Vargen sneaks along and kidnaps Skalman to his "doomed castle". [...]