This GBA cart is a weird but fun combo—Sonic Advance and ChuChu Rocket packed together. Sonic's your usual speedy platformer (though the physics feel a little off compared to the Genesis days), while ChuChu Rocket is this bizarre puzzle game where you guide mice into rockets before cats eat them. Honestly, I booted it up for Sonic but ended up wasting way too much time on ChuChu's frantic tile-placing chaos.

Both games hold up surprisingly well on the small screen, though the Japanese text in ChuChu can be confusing at first. If you're into retro oddities or just want a double dose of early 2000s SEGA charm, this one's a solid grab.