SonSon II is a platformer game developed by Capcom and originally released on the TurboGrafx/ PC Engine in 1989. It is the sequel to the 1984 game SonSon and the second game in the series.
Here´s gameplay video by Retro Tuna
You need the original ROM to patch “Son Son II (Japan).pce”
Recommended Emulator for Turbo Grafx 16