I think Crazy Taxi is a game that anyone can enjoy due to it's pick up and play nature and simple appeal, but there's very interesting mechanical depth you wouldn't expect to find that really extends the longevity of the game in interesting ways.

Wilmot's Warehouse :3

Might I recommend Tazmania for the Sega Game Gear.

Luke keeps beating me to Crazy Taxi reccomendations

Super Monkey Ball!

@DustyVita No worries, I'll take the double recommendation as a good sign.

Bangai-O Spirits

vib ribbon

Wilmot's Warehouse completed! https://www.backloggd.com/u/JohnHarrelson/review/293619/

Crazy Taxi! https://www.backloggd.com/u/JohnHarrelson/review/317390/

Gonna recommend Jet Set Radio Future because I've been seeing some interesting perspectives on that game lately.

Added!

way late on this but gonna recommend wario land 3

Langrisser IV

Hypnospace Outlaw

Hypnospace Outlaw- https://www.backloggd.com/u/JohnHarrelson/review/391188/

Tetris Effect (if you’re still doing recommendations)

Still taking recommendations? If so, how about something like Viewtiful Joe?

Viewtiful Joe! - https://www.backloggd.com/u/JohnHarrelson/review/515759/

Oh man................................. I don't really know any good action games...................................... I'm sorry I failed you!!!

@Archagent - Feel free to recommend anything, it doesn't have to be an action game!

I just want to make sure I recommend a game you'll end up liking!

Mother 3

Seems like you're still accepting recommendations, so I may as well throw my favorite Summon Night: Swordcraft Story in here. I very highly recommend playing with the female main character and with Sugarette as your partner!