[[caption-width-right:209:Wonder Boy and Tina.]]
''Wonder Boy'' is a side-scrolling platform game by Creator/{{Sega}} and Escape (now known as Westone Bit Entertainment) originally released for the arcades in 1986. The player controls the [[CharacterTitle eponymous Wonder Boy]], a young boy in a tropical setting who sets out to [[DistressedDamsel rescue his girlfriend Tina]] from an [[MeaningfulRename Evil Witch Doctor]] known as [[AristocratsAreEvil King]]. Along the way he picks numerous power-ups such as skateboards and throwing axes while trying to maintain his vitality by [[HyperactiveMetabolism eating as much food as possible]].

''Wonder Boy'' was ported to various Sega platforms such as the [[UsefulNotes/OtherSegaSystems SG-1000]], UsefulNotes/SegaMasterSystem and the UsefulNotes/GameGear, as well as a few 8-bit home computers (namely the UsefulNotes/{{Commodore 64}}, UsefulNotes/AmstradCPC and UsefulNotes/ZXSpectrum). The game also received a licensed [[UsefulNotes/SoftwarePorting re-release]] for the UsefulNotes/NintendoEntertainmentSystem by Hudson Soft titled ''VideoGame/AdventureIsland'', [[DivorcedInstallment splitting the franchise into two directions]]. While the "Adventure Island" sequels remained true to the style of the original game for the most parts, the ''Franchise/WonderBoy'' sequels would take on a fantasy-themed action RPG approach.

Surprisingly, long after the announcement of ''VideoGame/MonsterBoyAndTheCursedKingdom'' and the ''[[VideoGame/WonderBoyIIITheDragonsTrap Wonder Boy: The Dragon's Trap]]'' [[VideoGameRemake remake]], Korean company CFK released a follow-up called '''Wonder Boy Returns''' via UsefulNotes/{{Steam}} on October 12, 2016. It uses the same arcade gameplay as the original, but redesigned levels and bosses, with the main antagonist being a BigRedDevil. On November 22, 2016, the Ver 1.0 update was released to address issues players had with the initial release, and included two additional playable characters: Classic Boy and (New) Tina.

!!Tropes in the original ''Wonder Boy:''
* AmericanKirbyIsHardcore: Here is the [[http://segaretro.org/images/e/e2/WonderBoy_SMS_JP_cover.jpg Japanese cover art]] of the Mark III version, and it looks way more cheerful that its [[http://segaretro.org/images/7/73/WonderBoy_SMS_US_cover.jpg incredibly bland Master System counterpart]]. Now, check out the [[http://segaretro.org/images/7/71/Wonder_Boy_GG_US_front.jpg western Game Gear cover]]... hoo boy.
* BattleBoomerang: Tina's weapon in ''Wonder Boy Returns'' is a boomerang instead of a stone axe.
* BoundAndGagged: Pratically every splash screen of the Master System version has Tina tied up and squirming.
* ChestMonster: The spotted eggs contain a GrimReaper-type monster that drains your vitality.
* CountrySwitch: The Master System port changes its title to ''Super Wonder Boy'' when played on a Japanese console.
* DoubleStandardAbuseFemaleOnMale: In ''Wonder Boy Returns's'' intro, after finding Wonder Boy ogling some girls, Tina mercilessly beats him to pulp.
* DroughtLevelOfDoom: The extra desert levels of the Master System, where food is obviously scarce. As well as many of the later levels.
* DubNameChange: Boy and Tina became Tom-Tom and Tanya in the Master System and Game Gear home ports, and King became King Drancon in the latter. The Japanese releases and all other versions use the original names, however.
* EarlyInstallmentWeirdness: This is the only ''Wonder Boy'' game to feature a prehistoric theme, not to mention the only game where the protagonist does not handle a sword... unless one counts the ''Adventure Island'' series as the true successor to this game, in which case the basic changes include the main character given a new identity, the redesigned damsel in distress, and the main antagonist replaced by other villains.
* FantasyHelmetEnforcement: Picking up the skateboard power-up will automatically garb you in safety gear too, which does nothing but heaven forbid it set a bad example.
* HardModeFiller: All of the boss stages have the exact same template with different enemy and item placement, and most of the other level templates are reused at least once.
* HeadSwap: The boss in each world is literally the same boss with a different head. After being defeated he changes to his next head.
* PointOfNoContinues: The Arcade version doesn't allow you to continue anymore once you reach the final area.
* PowerupLetdown: On some levels, the skateboard's speed becomes a liability as it makes timing jumps between platforms more difficult.
* PromotedToPlayable: Tina in ''Wonder Boy Returns''.
* ReformulatedGame: The SG-1000 version is essentially a different game, with its own (smaller) set of original stages and music. The same goes for the home computer version (released for Commodore 64, Amstrad CPC and ZX Spectrum). ''Wonder Boy Returns'' is also marketed as a remake, but features an entirely different set of stages as well, complete with exclusive themes and hazards.
* TrueFinalBoss: In the Arcade and Master System versions, the true final area and King's true form can only be reached by [[GottaCatchThemAll collecting all of the dolls]] [[GuideDangIt hidden throughout the game.]]
* WizardNeedsFoodBadly: Wonder Boy has to stay well fed, or else he'll die.