Hidden Temple Stages...
	Mirror Mode...
	Music Gallery...
	Original Donkey Kong...
	Staff Credits...
	The Golden Temple...

There's a special temple stage hidden within each section of map. In order to find them, you have to collect the K-O-N-G letters from every level of that particular map section.

Temple	How to unlock
Beach Temple	Collect all KONG letters from every Beach level.
Cave Temple	Collect all KONG letters from every Cave level.
Cliff Temple	Collect all KONG letters from every Cliff level.
Factory Temple	Collect all KONG letters from every Factory level.
Forest Temple	Collect all KONG letters from every Forest level.
Jungle Temple	Collect all KONG letters from every Jungle level.
Ruins Temple	Collect all KONG letters from every Ruins level.
Volcano Temple	Collect all KONG letters from every Volcano level.

Once you've gotten inside the Golden Temple, you'll unlock a new section on the map called the Cloud. Complete all nine of its levels to unlock Mirror Mode. This mode allows you to play through flipped versions of each level. In addition, Diddy Kong is not available, and you're only given one heart.

After you've beaten a boss for a given section of the island, head back to the Extras Menu. You'll have unlocked a bonus music gallery that features the tracks played in the levels of that particular section. It's also worth noting that you must defeat the boss yourself; if you use Super Kong to get past the fight, you won't unlock the music.

Music	How to unlock
Beach Music	Beat the boss of the Beach section.
Cave Music	Beat the boss of the Cave section.
Cliff Music	Beat the boss of the Cliff section.
Factory Music	Beat the boss of the Factory section.
Forest Music	Beat the boss of the Forest section.
Jungle Music	Beat the boss of the Jungle section.
Ruins Music	Beat the boss of the Ruins section.
Volcano Music	Beat the boss of the Volcano section.

Pay close attention near the start of level 7-1. In the background, you should see a level that appeared in the original game. You'll also find numerous other nods to past games throughout the level.

After you've beaten the game, you'll unlock the Staff Credits. They can be viewed in the Options section of the main menu.

After you've beaten the game, a new area called the Golden Temple will appear on the map. However, you can't enter it immediately; in order to open the door, you need to collect eight Rare Orbs. To find the Orbs, you must go back and collect the K-O-N-G letters in each level, then complete the special temple level in each section of the map. Alternatively, you can visit each of Cranky Kong's shops and buy an Orb for 50 coins a piece.