History YMMV / HappyTreeFriendsAdventures

* JustForFun/XMeetsY:
** For the most part, this series is mainly ''WebAnimation/HappyTreeFriends'' meets ''Franchise/SuperMarioBros''.
** HTFA 3 is the former meets ''VideoGame/AdventureIsland'' series, down to the graphic style (mostly), map, and the character selection screen.
** HTFA 5 is HTF meets ''VideoGame/Kirby64TheCrystalShards'' (despite not in 3D), [[WordOfGod according to Radel999]].
** HTFA 6 is, obviously, HTF meets ''Franchise/MegaMan'' series, as shown by the majority of the graphic and music style used and most of this game's bosses and enemies.
** HTFA Land is basically HTF meets ''VideoGame/NewSuperMarioBros'' series (with a dash of ''VideoGame/MegaManX'', thanks to the bosses featured), considering the similarity of most world themes and the overworld map (even including the castle and airship levels; but the gameplay is progressively linear, you can't revisit finished levels).
** As mentioned before, HTFA Maker is HTF meets ''VideoGame/SuperMarioMaker''.

* WhatDoYouMeanItWasntMadeOnDrugs: One HTF fan managed to question whether Radel999 was high when he made this series. He didn't take it kindly. Doesn't help that the {{Crossover}} concept uses a highly-unlikely franchise combination.

* ScrappyMechanic: Due to [=HTFMegaman=] keeping the default keys in any of these games, the controls may as well be this. You use, Games Factory/Multimedia Fusion, for the keyboard controls at least, defaults the action keys to Shift, Ctrl, Space bar and Enter. Using Enter as the "Start" button is forgiven, though, but consider that jumping and shooting are bound to Shift and Ctrl, respectively. Both actions are done often, especially jumping. You can see where this going[[labelnote:*]]Stickykeys, anyone? (that is, unless you disabled the prompt)[[/labelnote]]. Special Powers, introduced in HTFA 6, have their usage bound to the Space bar, resulting in a rather uncomfortable control layout. Fortunately, you can either re-bind the controls yourself or use a joystick (if supported).

** From the same game, Koopa Muscler can be considered this too. These things are bigger than common enemies and their only attack is [[GoombaStomp jumping to crush]] the player. Their size makes it difficult to go past them, so having them jump is the only way to do so. The problem is that they actively follow the player, they take multiple hits before being destroyed, and there can be more than one on-screen. It's also not uncommon to encounter them in the middle of platforming segments where you have jump across multiple pits. It's best to simply run past them and take few hits instead of trying to get rid of them, take multiple hits, and waste your time.

* HarsherInHindsight: Considering that most HTFA games, especially the early ones, took some inspiration from [[UsefulNotes/NintendoEntertainmentSystem NES]] Creator/{{Konami}} games, not to mention that said games usually have a "special thanks" part to said company, it's kind of difficult to look at the credits now with said mention after considering the '''[[InternetBackdraft massive]]''' [[InternetBackdraft backlash]] that Konami had gotten in 2015 and 2016, especially [[AmericansHateTingle from the West]]. The more recent HTFA games are more ''Franchise/SuperMarioBros''-esque (though HTFA 6 is more ''Franchise/MegaMan''), so Konami is no longer mentioned anymore in the credits, but if you're playing the older games...

* HarsherInHindsight: Considering that most HTFA games, especially the early ones, took some inspiration from [[UsefulNotes/NintendoEntertainmentSystem NES]] Creator/{{Konami}} games, not to mention that said games usually have a "special thanks" part to said company, it's kind of difficult to look at the credits now with said mention after considering the '''[[InternetBackdraft massive]]''' [[InternetBackdraft backlash]] that Konami had gotten, especially [[AmericansHateTingle from the West]]. The more recent HTFA games are more ''Franchise/SuperMarioBros''-esque (though HTFA 6 is more ''Franchise/MegaMan''), so Konami is no longer mentioned anymore in the credits, but if you're playing the older games...

** Played completely straight in the future games, as WordOfGod stated that he will remove blood and gore in those games, starting with HTFA Maker. Time will tell whether an InternetBackdraft will occur or not.

** Will be played completely straight in the future games, as WordOfGod stated that he will remove blood and gore in those games. Time will tell whether an InternetBackdraft will occur or not.

** Say what you will about how bizarre/stupid/cheesy this fan series is. The fact that you play as the [[MadeOfPlasticine notoriously-fragile]] Happy Tree Friends and you fight Bowser and his army with said critters are enough to make the playable characters seem awesome on their own. Being the only known HTF fanwork to become a relatively large ''series'' (consider that most HTF fangames are either unfinished or ended up missing from the web) is also considered an awesome moment for the fandom.

** As weird as it sounds, yes, you can play as an UnexpectedCharacter that is [[spoiler:Izzy]] in HTFA 6. Unlike [=TwinBee=] and [=WinBee=], once he's accessible, you can spend the rest of the levels in HTFA 6 playing as him. If you know his franchise origin, you'll know why this deserves to be in this section, even though you consider this character's presence as weird.[[note]]For those who don't know and don't care about spoilers, Izzy (or also known as his original Japanese name, Koushiro) is a character from ''Digimon Adventure''. One of the (now former) HTF fans that happened to help [=Radel999=] during the development of HTFA 6 is the one who designed his HTF appearance, which Radel took interest on, hence why he's a purple squirrel in HTFA 6. Now, regarding his franchise origin, the awesome moment being is that you can simply play as him once you've finished one-third of HTFA 6. No Digimon partner in sight, he's just equipped with a laser gun and an infinite supply of balls/orbs.[[/note]] But seriously, [[spoiler:Izzy]] blasting Koopas with a laser gun just sounds awesome.

* CrackPairing/[[CrossoverShip Crossover Ship]]: Radel999 once paired Flaky with ''Bowser'' in [[http://htfmegaman.deviantart.com/art/HTF-Flaky-x-Bowser-289733600 a single artwork]]. Yes, the man went there. Doubles as a BigLippedAlligatorMoment for his Website/DeviantArt gallery as the pairing is never mentioned again.

* MagnumOpus: It appears that HTFA 6 is regarded as this, despite still having its own glaring flaws. For one thing, it's a bigger project compared to the earlier titles. It also involves other (now mostly former) HTF fans in its development and even gained its own spotlight due to being released when the fanbase wasn't completely shattered yet. It also helps that Radel made his own Website/DeviantArt account for the first time during development of the sixth main game, giving him more exposure in addition from his own Website/YouTube channel (which he had kept for a long time). Not to mention that HTFA 6 has its own ''legitimate'' difficulty, which is almost like ''Franchise/MegaMan'' series itself, thus giving players an authentic challenge. Compared to the other titles released after HTFA 6, nothing is as "exciting" as the latter title, due to less fandom involvement after the fanbase had shattered some time after the release of HTFA 6 (the reason is elaborated in [[YMMV/HappyTreeFriends HTF's YMMV page]]). Yes, even though the later titles have [[GrowingTheBeard a better, polished game engine]].

** [[VideoGame/WarioLand Spiked Koopa Troopa]]'s level in HTFA 6. BottomlessPits, [[SpikesOfDoom spikes]], and tricky platforming abound. This being the first choice in the beginning part of the game (this covers one-third part of the game; like the [[Franchise/MegaMan Mega Man]] series, you can do those levels in any order) can throw off some players. You might find yourself dying often while trying to platform through. [[NintendoHard Not like the other levels are any easier]]. Some players consider HTFA 6 to be the most difficult (near-stable) HTFA game, and it shows. As for the boss battle itself, it is easy, but wastes a lot of time due to his [[SpinAttack attacking]] [[SpikesOfDoom pattern]].

* SoBadItsGood: Another result of the above {{Narm}} factors, when it's not being generally criticized for being SoBadItsHorrible, that is.

* BreatherBoss: In HTFA 5, for a boss in the penultimate kingdom, [[VideoGame/SuperMarioBros2 Wart]] is incredibly easy to defeat.

** HTFA GB has [[DonkeyKong94 Bowbow]]. These critters are first introduced in the third level and they're pretty much bothersome. They walk faster than other enemies and their only method of attack is spitting a fireball, which travels ''extremely'' fast (as fast as [[ThatOneBoss Hyoey's]] shots, in fact). If they're in enclosed spaces, you can think twice before striking them, but if they're at the same flat ground as you, it's usually too late for you to dodge or shoot them. Helpful tip: Shoot at all times starting from the third level. These critters are really annoying, yes, but at least they die in one hit.

** In HTF Origins, it's either the Dragon, Bowser himself, or both. You're going to hate flames in this game, especially the blue ones, a lot more than flames from other games.

** In HTFA 6, the third level of Bowser's fortress features one vertical section where you have to dodge lasers that deal three hit points of damage (keep in mind that you have 8 hit points at maximum in this game). You have to move ''fast'', as the lasers are shot quite quickly, and there are numerous of them as you climb down this section. There are health items scattered around, but there aren't many of them and aren't enough to save you. Not even MercyInvincibility can help either if you're not quick enough or often getting stuck, slowing down your progress and quickening your death. Going into this level as Petunia, the fastest runner, is recommended. However, once you've gotten past this section, you only have one more section left before ThatOneBoss...

* SequelDisplacement: Not many people know about the very first HTFA game. HTFA 2 and 3 also suffer from this, as there are more people who know about HTFA 4-6 and its spinoffs that those games. To be fair, the early games suffer from EarlyInstallmentWeirdness and FakeDifficulty in the form of clunky physics and mechanics.