Those amazing games no one knows about.

[Klonoa]

Dynamite Headdy: A Mega Drive platformer that is really good, like, has some amazing bosses, music and graphics for the Mega Drive. Made by Treasure to boot.

The Klonoa series (Particualy the second game) are nice, simple platformers that focus on a mixture of some (admittedly basic) puzzles and platforming. The soundtrack is also bloody fantastic, seriously, look it up now.

The Puyo Puyo series: Okay, I know that the series is quite big in Japan, but in Britan is is pretty much unknown.