Pocket Monster II is a platform game for the Sega Mega Drive and a direct sequel to Pocket Monster, both probably developed by ex-workers from Chuanpu Technology and perhaps published by X Boy.
This game shows significant improvements over the original, as both the artwork and audio have been improved, though the former is still mostly stolen from other games and it still shows all the previous glitches, in addition to a new one. The music is mostly remade from the Japanese Pokémon TV series, with songs including the original Japanese opening theme (Stage 1 and Stage 4) and the song 'Hyakugojyuichi' as the ending theme of the Japanese pilot as the boss theme in the game.
This game is incredibly short overall, as it only contains four levels with a sole final boss at the end of the final one. However, the length of the game comes in punishing slightly careless actions with a very large amount of leaps of faith and overall blind jumps, in combination with the lack of checkpoints. Also, despite the game has very few stages, they're incredibly long, so all of this makes the game aggravating at times. Falling down is almost a guarantee if you don't have the map completely memorized. However, the plentiful extra life pickups, which regenerate upon death, keep you from getting a Game Over too soon. The four levels themselves are also incredibly generic. They have no names, but their themes are the following: forest, canyon/valley, castle, and power plant. The only one of the four levels with a specific mechanic is the third, with a button-activated door.