Pretty self-explanatory, but any themes that either give you the feel of going through a jungle, or just music to an awesome jungle stage. Post away...

Jungle Japes- Donkey Kong Country
Jungle - Contra
Jungle - Goldeneye

Only have a few for now, now get crackin.

Metal Gear - The Beginning (http://www.youtube.com/watch?v=2MVBAUUCuB4)
Donkey Kong Country 2 - Brambles (http://www.youtube.com/watch?v=73n7HTcmb5g)
Donkey Kong Country - Forest Frenzy (http://www.youtube.com/watch?v=Eq5oUe_91Qs)
Captain America & the Avengers - Stage Theme (http://www.youtube.com/watch?v=hnKM5Wso2Nk)
Castle Crashers - Forest Entrance (http://www.youtube.com/watch?v=_tUBK0zUpSs)
Adventure Island - Stage Theme (http://www.youtube.com/watch?v=PD5d8HRDFgA)
DuckTales - Amazon (http://www.youtube.com/watch?v=ouRX7KUUycA)
Wizards and Warriors - Forest (http://www.youtube.com/watch?v=BzRTkWhtDYs) (:43)
Terranigma - Zue (http://www.youtube.com/watch?v=FBa8HudCl8s)
Most of the G.I. Joe: The Atlantis Factor soundtrack (Thread 34462) (download)

It's hard to even think of too many games with jungle settings: Adventure Island, Donkey Kong Country, Contra, Super Mario RPG, Jackal, Crysis, The Lion King, StarTropics...

X-Men(Arcade)-Dance With A Crocodile
Kingdom Hearts-Deep Jungle

Crash Bandicoot 2 - Jungle
Crash Bash - Jungle Bash & Jungle Fox
Crash Bandicoot: The Wrath of Cortex - Jungle Rumble
Mario Kart Wii - N64 DK's Jungle Parkway
Wario Land Shake - Ropey Jungle. Savannah Valley & Soggybog River.
Sonic Heroes - Lost Jungle
Sonic Adventure 2 - Green Forest & White Jungle
Shadow the Hedgehog - Death Ruins
Wario World - Beanstalk Way I
Crash Nitro Kart - Jungle Boogie
Mega Bomberman - Jammin' Jungle

The Forest temple song from Zelda Ocarina of time

Sonic Adventure: Mystic Ruins (http://www.youtube.com/watch?v=S1i8MEHcX0Q)
that's all that come to mind...

Zelda: Majora's Mask - Deku Palace
Banjo-Tooie - Mayahem Temple
Donkey Kong 64 - Jungle Japes, Angry Aztec(maybe)
Zelda: Wind Waker - Forest Haven
Jade Coccoon - Beetle Forest, Dragonfly Forest, Spider Forest, Moth Forest
Panzer Dragoon Orta - The Hidden Ground
Paper Mario - Yoshi's Island, Jade Jungle
Mario Sunshine - Pianta Village
Yoshi's Island -Overworld
Sonic Adventure - Mystic Ruin, Tricky Maze(Lost World)
Sonic the Hedgehog 2006 -Tropical Jungle~The Ruins, Tropical Jungle~The Jungle~The Swamp

Skies of Arcadia - Kingdom of Ixa-taka

Just about everything in Super Mario Sunshine
Safari Zone - Pokemon Ruby/Sapphire/Emerald
Deep Darkness - EarthBound
Tanetane Island - Mother 3
Jungle Beat/Jungle Style - Roller Coaster Tycoon 2
Deep Jungle, Having a Wild Time, Holy Bananas! - Kingdom Hearts
DK Mountain/Dino Dino Jungle - Mario Kart Double Dash!!
Riverside Park - Mario Kart Super Circuit
Donut Plains - Super Mario Kart
Jungle Adventure, Tropical Island - Mario Party
Mystery Land - Mario Party 2
Shy Guy's Jungle Jam - Mario Party 4
Yoshi's Island, Yoshi Championship - Mario Golf
Kongo Jungle - Super Smash Bros.
Keelhaul Key - The Thousand Year Door
White Jungle, Rhythm and Balance - Sonic Adventure 2 (Battle)

Tarzan - Welcome to the Jungle (PSX or PC version) (http://www.youtube.com/watch?v=kRzS4bF69B8&feature=related)

Hitman: Codename 47 - Dark Jungle (http://www.youtube.com/watch?v=YKliSRIMDfY) and Jungle Exploration (http://www.youtube.com/watch?v=EDsLzVzjrJg&feature=related)

Super Mario RPG, Beware the Forest's mushroom.
Donkey Kong Country: Jungle Japes.

Those come at the top of my head.

Napalmman (Megaman 5)
Slashman (Megaman 7)

Sonic Riders: Theme of Green Cave (http://www.youtube.com/watch?v=jbUlrWSIWEk) perfect

Jungle -Part1- and -Part2-
From the Phantasy Star Online Ep2 Soundtrack

Rathian, Queen of the jungle / Jungle fighting theme
Monster Hunter (G, G Wii)

Final Fantasy XI: Online ~ Rise of the Zilart - Yuhtunga Jungle
Final Fantasy XI: Online ~ Rise of the Zilart - Kazham
Dynasty Warriors 3 - The Exotic Traitors (Nanman)
Dynasty Warriors 4 - The Seventh Capture
Dynasty Warriors 5 - Primitive Power
Sonic the Hedgehog 3 - Angel Island

They're just some that I can recall off the top of my head at the moment. :)

Zelda: Majora's Mask - Deku Palace


QFT. Brilliant piece. Southern Swamp in general has some of the finest tunes ever.

Contra 4 - Waterfall

Sonic the Hedgehog (Master System/Game Gear) - Jungle Zone
Final Fantasy IX - Iifa Tree
Final Fantasy XII - The Salikawood
Pokemon Ruby/Sapphire - Petalburg Woods
Twilight Princess - Forest Temple
Shadow of the Colossus - Green Hills
Metal Gear Solid 3 - Battle in the Jungle, The Fear, The Sorrow, Ocelot Youth ~ Confrontation

Bitches don't know 'bout my Metal Slug:
http://www.youtube.com/watch?v=CpdWvV1Y00s

Toshikazu Tanaka is so awesome.

Web Spider -Mega Man X4
Slash Man -Mega Man 7
Free Spirit -Front Mission 4
Break Free -Front Mission 4

Oh man...

Worlds Navel: Chrono Cross
Hydra Swamps: Chrono Cross
Shadows End Forest: Chrono Cross
All the forest themes from Jade Cacoon
Holo Holo: Baten Kaitos

Could someone set up links for all these songs for downloading? That would be awesome.

Lost Vikings 2 Norse by Norsewest - Jungle levels 1-3

Link for download on my forums at videogamemm.com

Blackthorne - Forest of OneHand

Paper Mario - Swinging Jungle Beat

Jurassic Park 2 : The Chaos Continues (SNES) - Jungle

Jurassic Park 2 : The Chaos Continues (SNES) - Jungle

A million times this.

Jurassic Park (SNES) - Raptor Rap (http://www.youtube.com/watch?v=fOz941k68n4)
Thunder Force V - Beast Jungle (http://www.youtube.com/watch?v=yOzm8k-mhwc)

Jungle level in Phantasy Star Online ver.1 & 2. This level was my favorite as well as the music. It's so calm and charming

Super Metriod - Brinstar~ The Jungle Floor