This is a .gb rom file and the game is Enter Japan. In Enter Japan you play as a young male protagonist with a backpack on negotiating your way over obstacles by means of jumping. The game is an endless runner platformer and is fairly simple due to been in its BETA phase. The game allows you to set the difficulty level as well as the ability to change the colour of the protagonist. It is current on sale at the time of writing with a generous launch discount of 30% off! Link here: https://coljam-official.itch.io/enter-japan