Pokemon playing games.
These games are outside of the scope of the main RPG series of Pokemon Games but were still released on handheld consoles from the original Game Boy right the way to the current gen. We refer to them as spin off where some refer to them as side series games.

The first ever spin off game released on a handheld console was Pokemon Pinball for the Game Boy Color in 1999 since then there has been a rich variety of different releases from edutainment type titles like Learn with Pokemon: Typing Adventure and Art Academy, releases centred around electronic versions of the trading card game, pinball and puzzlers as well as a spin off generation of the traditional Pokemon RPG's in the forms of games like Pokemon Conquest and the Mystery Dungeon series.

Spin off Games on the Game Boy Color & Gameboy Advance

Pokemon Pinball GBC Pokemon TCG GBC Pokemon Puzzle Challenge GBC
Pokemon Pinball
Game Boy Color
Pokemon Trading Card Game
Game Boy Color
Pokemon Puzzle Challenge
Game Boy Color
Pokemon Mystery Dungeon Red Rescue Team GBA Pokemon Pinball: Ruby & Sapphire Pokemon Card GB2 Japan GBC
PMD: Red Rescue Team
Game Boy Advance
Pokemon Pinball: Ruby & Sapphire
Game Boy Advance
Pokemon Card GB2 (Japan only)
Game Boy Color


Spin off Games on the Nintendo DS

Pokemon Conquest DS Pokemon Dash DS Pokemon Trozei aka Pokemon Link DS
Pokemon Conquest
Nintendo DS
Pokemon Dash
Nintendo DS
Pokemon Link aka Pokemon Trozei
Nintendo DS
Pokemon Mystery Dungeon Blue Rescue Team Pokemon Mystery Dungeon Explorers of Darkness Pokemon Mystery Dungeon: Explorers of Sky
PMD: Blue Rescue Team
Nintendo DS
PMD: Explorers of Darkness
Nintendo DS
PMD: Explorers of Sky
Nintendo DS
Pokemon Mystery Dungeon: Explorers of Time Pokemon Ranger DS Pokemon Ranger: Guardian Signs
PMD: Explorers of Time
Nintendo DS
Pokemon Ranger
Nintendo DS
Pokemon Ranger: Guardian Signs
Nintendo DS
Pokemon Ranger: Shadows of Almia DS Learn with Pokemon Typing Adventure DS
Pokemon Ranger: Shadows of Almia
Nintendo DS
Learn with Pokemon: Typing Adventure
Nintendo DS

Spin off Games on the Nintendo 3DS

Pokemon Art Academy Pokemon Dream Radar Pokemon Mystery Dungeon Gates to Infinity
Pokemon Art Academy
Nintendo 3DS
Pokemon Dream Radar
Nintendo 3DS eShop
PMD: Gates to Infinity
Nintendo 3DS
Pokemon Picross 3DS Pokemon Rumble Blast 3DS Pokemon Rumble World
Pokemon Picross
Nintendo 3DS eShop
Pokemon Rumble Blast
Nintendo 3DS
Pokemon Rumble World
Nintendo 3DS
Pokemon Super Mystery Dungeon  
Pokemon Super Mystery Dungeon
Nintendo 3DS