History Characters / HappyTreeFriendsAdventuresBosses

* TheRival: To Bowser, if Bowser's letter is to be believed.

A huge dragon that was unleashed by Bowser in HTF Origins. He uses it to threaten Happy Tree Kingdom, as well as to capture every resident there. Fortunately, only very few survived this monster's rampage.

* AttackItsWeakPoint: Only its midsection can be damaged.

* [[DefeatEqualsExplosion Defeat Equals Explosion]]/MadeOfExplodium: It explodes after being defeated.
* TheDragon: To Bowser. In HTF Origins, you fight it in the penultimate level.

* MookMaker: Roy can summon [[VideoGame/AdventureIsland Skulls]] along with the usual [[PlayingWithFire flames]] in HTFA 4.

* TremorTrampoline: Lemmy in HTFA 4 does this, but the player character isn't affected. It affects the Podoboos in the lava, causing them to bounce up high when Lemmy ground pounds.

[[spoiler:A character from the HTF spinoff, ''Ka-Pow!'', specifically from the ''W.A.R. Journal'' short. Originally only the main enemy for Flippy and his allies, in this series he seeks to threaten the other Happy Tree Friends. Because of this, he also works for Bowser.]] He appears in HTF Origins as the third boss. In that game, he pilots the [[VideoGame/{{Contra}} Police Cruiser]], which he believes to be a perfect killing machine. He later appears in HTFA 6, [[spoiler:where he owns a fortress and uses a chainless [[VideoGame/MegaMan6 X Crusher]] instead]].

* ClimaxBoss: In HTFA 6. He's like Cossack from the Franchise/MegaMan series [[spoiler:and he's the final boss of his fortress. Also, has one of the mechas from the series too, ready to smash you.]]
* [[spoiler:TheDragon: To Bowser in HTFA 6]].

A huge fiery dragon that rises from the lava pools in Jungle Kingdom's cave in HTFA 5.

* BossDissonance: For an example, Iggy is the first boss in HTFA 1, but the level he's in is rather difficult for such an early level.

* ShoutOutThemeNaming: See above. Though Morton is named after [[Series/TheMortonDowneyJrShow a talk show host]], while Ludwig is named after a ClassicalMusic [[Creator/LudwigVanBeethoven composer]].

[[spoiler:A character from the HTF spinoff, ''Ka-Pow!'', specifically from the ''W.A.R. Journal'' short. Originally only the main enemy for Flippy and his allies, in this series he seeks to threaten the other Happy Tree Friends. Because of this, he also works for Bowser.]] He appears in HTF Origins as the third boss. In that game, he pilots the [[VideoGame/{{Contra}} Police Cruiser]], which he believes to be a perfect killing machine. He later appears in HTFA 6, [[spoiler:where he owns a fortress and uses a huge mech instead]].

* OffModel: The sprites for Iggy and Ludwig in the first two games depict their VideoGame/SuperMarioWorld and SNES VideoGame/SuperMarioBros3 appearance, respectively.

[[folder: Boom Boom]]

* [[MadeOfExplodium Made Of Explodium]]/DefeatEqualsExplosion: After defeating him, he somehow bursts into an explosion.

[[folder: King of Nightmares]]

* VillainDecay: In HTFA 1, its only means of attacking is limited to simply shooting flames. It's pretty much just an even plainer DamageSpongeBoss.

* VillainDecay: His whole body can be damaged and its only means of attacking simply involve shooting flame. Compare to his original appearance in the Famicom VideoGame/AlteredBeast where he can spit purple worms and summon lightning, and his weak point is the bubbling mass on his lower torso.

* VillainDecay: In HTFA 6, you can pretty much shoot any part of this robot unlike its VideoGame/MegaMan4 incarnation, where its only weak point is its forehead (specifically, the green orb on it).
** This might be intentional, as due to where the boss is placed, it's impossible to reach the forehead.

[[caption-width-right:232:Top row, from left: Spiked Koopa, Fire Koopa, Jungle Koopa. Bottom row, from left: Water Koopa, Ice Koopa, Ghost Koopa.]]
-->'''Creator:''' [=HTFMegaman=] (except for [[VideoGame/WarioLand Spiked Koopa Troopa]])

A group of six Koopas working for Bowser. They first appeared in HTFA 6, with Spiked Koopa getting another appearance in HTFA GB. The Koopas include Spiked Koopa, Fire Koopa, Jungle Koopa, Water Koopa, Ice Koopa and Ghost Koopa.

* ShockwaveStomp: Done by Spiked Koopa in HTFA GB.

* SpikesOfDoom: In HTFA 6, Spiked Koopa shoots out his spikes when he leaps out from his SpinAttack.

* SpikesOfVillainy: Spiked Koopa, obviously.

* SpinAttack: Spiked Koopa spends most of his time in this invulnerable state.
* WakeUpCallBoss: Regardless on which order you played the early levels in HTFA 6, Fire Koopa is this, as battling him requires quick reflexes if you don't want to die easily. Compare this to the other Koopa Masters (and Brandy) that either require a set strategy (Spiked Koopa) or simply [[AttackAttackAttack plain attacking]] from a safe place and dodging (most others). He's also the only boss in that game to be able to deal two points of damage.

* GameOverMan: In HTFA 6, the game over screen features Bowser, who has decapitated Cuddles and Giggles.

* ShockAndAwe: In HTFA 4, Wendy is capable of summoning lightning bolts, a hazard that you're already familiar with as the section prior to meeting her has this kind of hazard.

[[folder: Beelzebub]]

[[folder: Emperor Demon Gyaba]]

* ProngsOfPoseidon: Water Koopa has one decorated on his head. Can also fire tridents in a SpreadShot.