Klax on Game Boy is one of those simple-but-addictive puzzle games that sneaks up on you. You're basically catching colored tiles sliding down a conveyor belt, then stacking them in rows or diagonals to clear them—three of the same color in a line makes them vanish. Sounds easy, right? Then the speed picks up, and suddenly you're frantically juggling tiles like a stressed-out Tetris player.

What I love is how it starts chill but gets brutal fast. The Game Boy version keeps the arcade feel tight, and the music has that classic bleep-bloop charm. If you dig puzzle games that don’t overcomplicate things but still wreck your nerves after level 10, this one’s a solid pick.