If you haven't played Kirby: Super Star before, you should! It's one of the better Kirby games, if not the best (though the DS remake, Kirby: Super Star Ultra, has even more stuff).
Each of the "games" within Kirby Super Star are different, so don't brush it off just because the first one, "Spring Breeze", is essentially a remake of the first Kirby's Dream Land.
As mentioned, we do have maps of almost all of it except for "Revenge of Meta Knight", which is one of the best games on there with the cool music and heavily features Meta Knight and his ship, the Halberd (which you might otherwise recognize from Super Smash Bros., especially "The Subspace Emissary" in Super Smash Bros. Brawl).
If it's not too much to ask for, with "The Great Cave Offensive", the treasure-hunting game, while we do have raw maps of it, I feel like they really should have the treasures marked and maybe even with the $ value of each one...