Alex Kidd in Miracle World (1986, Master System)

Alex Kidd in Miracle World is a platformer developed and released by Sega. It is considered to be Sega's answer to the original Super Mario Bros. game, and Alex became Sega's mascot until the arrival of Sonic.
Alex is a boy with monkey ears who has mastered the technique to smash rocks with bare hands. He needs to free the land of the evil Janken and also rescue his brother from Janken's castle.
Alex can jump and use his fist to smash enemies, blocks, etc. He has an inventory to store items which can be used when needed, like a ring which enables him to shoot fireballs. He can also use several vehicles like motorcycles or a "peticopter" throughout the game. Occasionally, Alex can enter a shop where he can buy items or vehicles from the money he has collected in the levels. Some levels end with a boss fight. Several boss fights consist of a game of Janken (the Japanese name for Rock-Paper-Scissors).