Developing video games can be hard. There are a lot ofdevelopment enginesout there with a lot of code to tweak, assets to make and arrange, and then keep the whole thing together without it bugging out. Then it all has to be done within set deadlines. The bigger the game, the more imperative it is to get it out in one quarter or another.

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Some companies devolve into crunch time, which burns out everyone, doesn’t necessarily lead to a solid product, and wouldn’t be worth the pain it causes either way. Others cut a few corners here and there. Why reinvent the wheel when the old one will do fine? It just means, when some people delve into the game’s files, they’ll find someinteresting surprises.

8Sonic 3 Has Leftovers from Sonic 2

Sonic3’s development is almost as interesting as the game itself. First, it was split in half to tie in with a McDonald’s’ campaign, leaving the remains ofSonic & KnucklesinSonic 3and vice-versa. Then there was the drama overMichael Jackson’s involvementin the soundtrack.

After all that, it makes remnants ofSonic the Hedgehog 2turning up in the game feel mundane by comparison. If people fiddled with the code, they’d get the menu fromSonic 2! It’s functional as well, complete with a working level select code. So, that’s one way to avoid fiddling withSonic 3’s own ridiculously tight code.

Hidden Game Data- Sonic 2 in Sonic 3

7Jun Kazama Almost Made It into Tekken 3

Tekken3was a departurefrom its predecessors. It had better animation, sidesteps, and a whole new cast of characters to play with. Even characters freshly introduced inTekken 2like Bruce Irvin and Baek Doo Sangot replaced with new faces Bryan Fury and Hwoarang respectively. At least for a few games anyway. However, the developers seemed unsure on whether to remove Jun Kazama, mother of new lead Jin.

She was another fresh face from the previous game and had an ambiguous fate at the hands of Ogre. Plus, the arcade game has data for her tucked within it. She has a character slot, complete with a portrait and voice clips reused fromTekken 2. However, picking her will just give the player Nina’s model with Jin’s moves. Jin’s deadly dad Kazuya also has a mention, but it’s little more than his name written in text.

Hidden Game Data- Jun in Tekken 3

6Shin Akuma Hides in Street Fighter 3: Third Strike

Street Fighter3: Second Impactbrought Akuma back into the game as a secret character. Just likeSuper Street Fighter 2 Turbo, if players did particularly well, they’d face off against him as a special boss. If he wasn’t difficult enough, beating him would just turn him into the more powerful (and cheap) Shin Akuma.

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Only his regular version appears inStreet Fighter 3: Third Strikeby default. However, if players tweaked the code a little, they could actually play as Akuma’s ‘true’ self. He’s exactly the same as hisSecond Impactcounterpart, except he’s prone to freezing in midair during certain moves. But it’s entirely possible to beat the game with him and get his ending…provided players don’t mind fighting Gill twice in a row.

5WWF Smackdown 1 & 2 Have A Tutorial Video from Evil Zone

The PlayStation’s wrestling games paled in comparison to N64 games likeWWFWrestleMania 2000andWWF No Mercy. However, thanks to Yuke’s, the console got a fine swansong with the first twoWWF Smackdowngames. They were more basic compared the N64 games, though that just made it easier to pick up and play.

They were certainly more playable than Yuke’s ambitious but stodgy 3D fighterEvil Zone. Nonetheless, it had a nice tutorial video that came in handy as dummy data to pad out a PlayStation disc. Yuke’s certainly thought so, as it appears in bothSmackdowngames, and two Japan-onlySimple 1500wrestling games for the budget market. One of which had its own secrets.

Hidden Game Data- Shin Akuma in SF3 Third Strike

4The Pro Wrestling 2 Has Portraits of Unused Secret Characters for WWF Smackdown 2

If any of theSimpleseries’ wrestling games were worth tracking down, it would have to beThe Pro Wrestling 2. Aside from playing largely likeSmackdown 2, it features a lot of options that theWWEgames would either not use for years, like the Inferno Matches, or would ever use like cement rings and electrified, barbed wire rings. It also reuses a lot of assets from theSmackdowngames, like the HUDs.

But what’s more interesting is the stuff under the surface. For example, it has unusedcharacter select portraitsfor WWE legends Andre the Giant, Bob Backlund, Jerry ‘The King’ Lawler, and Sergeant Slaughter. They never even made it into the final version ofSmackdown 2(not without a Gameshark or Action Replay anyway), yetThe Pro Wrestling 2has proof they came close to inclusion.

Hidden Game Data- Evil Zone Tutorial in WWF Smackdown

This mini-game didn’t make it to theMetal Gear SolidHD Collection, but if players saved in the prison cell in the originalMGS3andSubsistencegames, things would get odd. Instead of going back to Snake in jail, they’d find themselves in a dreary gray world, playing a duel sword-wielding character fighting monsters in police gear. They’d hack them up for a while, occasionally going into overdrive, before finally cutting to Snake waking up.

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According to series creator Hideo Kojima, this was a work-in-progress level from a canceled game. The end credits refer to it as ‘Guy Savage’, but that was about it for new info, until the Tokyo Game Show in 2011. At a presentation for theZone of the EndersHD Collection, they revealed Guy Savage was connected toa project called ‘Anubis’, which would’ve been part oftheZOEseries. Possibly even a potential 3rd entry, or more likely a spin-off from it.

2CastleVania: Portrait of Ruin Reuses Previously Unused Richter Belmont Moves

AsCastleVania’s 3D efforts floundered, their 2D entries continued to wow playerson the Gameboy Advanceand Nintendo DS. The second DS game,Portrait of Ruin, followedBloodlinesprotagonist John Morris’ son Jonathan andCastleVania 3’s Sypha Belnades’ descendant Charlotte into Dracula’s castle. As a sequel toDawn of Sorrow, it has a lot of leftovers from that game, like its Ax Armor and Soma’s Bat-Morph.

There are even graphics from the PC Engine CD gameRondo of Blood, like its version of the Carmilla boss. What’s more surprising is that it takes unused data fromSymphony of the Nightand finally uses it. Richter’s spin kicks, sweeps, and super jumps inPortrait of Ruinall originally came from its PlayStation predecessor. They were either going to be attacks for his boss fight, or for the player to use during his campaign.

Hidden Game Data- The Pro Wrestling 2 Inferno Match

1Judgment’s Light Yagami is in Yakuza Kiwami 2

The PS4 remake ofYakuza2was an upgrade fromYakuza 6, giving players more to do as the series’ perennial lead Kazuma Kiryu. Since both games were made in the Dragon Engine, it’s not a surprise that it had a few leftovers from the earlier game. Though much more curiously, it has a lot more data for what would becomeJudgment. The Japanese HUD icons from the detective-based spin-off can be found in the game, from the style-switching icons to the Drone controls.

Best of all, there’s a prototype model of Takayuki Yagami with his old lookmade prior to Takuya Kimura’s involvementin the game. He has nearly all his moves from the final game, along with some early Skill Unlock portraits. Some of them resemble those for his Snake Style inLost Judgmentas well. Either Ryu Ga Gotoku Studio was that forward-thinking, or it’s a coincidence.

Hidden Game Data- Guy Savage in MGS3

Hidden Game Data- Castlevania POR Richter Boss Fight

Hidden Game Data- Beta Yagami Upgrades in Yakuza Kiwami 2