Hamato Yoshi (1987 video games)

The original video games by Konami being based on the 1987 cartoon, Splinter made some occasional appearances in the video game adaptations either to give advice to the player (as befitting his role as the Turtles' mentor) or being held captive by a level boss.

Teenage Mutant Ninja Turtles
In the first home console video game, Splinter would sometimes appear on the pause menu giving advice. He would later be seen as a captive of the boss Mechaturtle and is rescued after the boss is defeated.

The ending of the game has the Turtles using the Shredder's Life Transformer Gun to restore Splinter to his human form Hamato Yoshi.

Teenage Mutant Ninja Turtles II: The Arcade Game
Splinter is saved after defeating Granitor and thanks the Turtles for saving him in a brief cutscene after the battle.

Teenage Mutant Ninja Turtles: Turtles in Time
Splinter appears in the opening cutscene and in the ending. He also hosts the 2-Player Versus mode.

Teenage Mutant Ninja Turtles: Fall of the Foot Clan
Splinter appears to explain the rules of the hidden minigames.

Teenage Mutant Ninja Turtles II: Back from the Sewers
Splinter briefly pops out of a pizzeria in the first stage to give the player a pizza powerup so they have a chance to heal before the fight against Rocksteady.

He later appears in a level transition cutscene riding the Turtle Blimp.

Teenage Mutant Ninja Turtles III: Radical Rescue
Splinter is the penultimate captive needing to be rescued, the key to his cell guarded by Scale Tail.

Teenage Mutant Ninja Turtles: Manhattan Missions
Splinter is featured in this DOS computer game. Oddly, the game's incarnation of Splinter seems more based on Splinter's Mirage counterpart than on his 1987 counterpart, as he opens the game by narrating the Turtles' Mirage origin while the game itself uses characters and elements from the 1987 cartoon as well as the live-action films.

Teenage Mutant Ninja Turtles: Tournament Fighters
In all three versions of the game, the story mode involves Splinter being kidnapped by either Shredder (NES version) or Karai (SNES and Sega Genesis versions).