History VideoGame / ThirtyXX

* AggressivePlayIncentive: Ace's Style mechanic encourages his players to keep seeking out enemies to attack, as his energy regeneration stays high as he lands hits.

* PromotedToPlayable: The 1.2 update adds Delta, an npc who issues the player challenges, as a free playable character.

* SwordAndGun: Delta is able to use both the N-Buster and A-Saber, and can get most of their weapons, powers, and techniques. Using both weapon types is even encouraged in a gameplay sense, as hitting an enemy three times with one weapon will let him unleash a fully charged attack with the other.

** Scrap trades can also be rerolled with the cost of scrap.

** The Patchwork Connector (only need three Core Augs of a set to get the SetBonus) does not return from ''20XX'', with its functionality appearing on the [[PowerAtAPrice Prototype Augs]] Patchwork Integrator(reduces damage the more Core Augs you equip) and Patchwork Overloader(increases CP cost of Core Augs).

** Delta can appear at the start of a level and challenge you to complete it under certain conditions, like being unable to use powers or augs or with reduced attack damage, for rewards.

* LeaningOnTheFourthWall: Elanor's final datalore entry is addressed to the person reading it, which in context could be referring to Nina and Ace but can just as easily be addressing the player directly.

The game was released on UsefulNotes/{{Steam}} in Early Access on February 17, 2021, and received a full release on August 9, 2023.

* {{Retraux}}: The game has a new pixel art style that is closer to that of the UsefulNotes/{{Playstation}} ''VideoGame/MegaManX'' games, owing to its retro inspiration.

* {{Nerf}}:
** Main weapon stat ups are much rarer than in the previous game, making the old strategy of [[DumpStat dumping special weapons and energy]] to focus purely on buffing the main weapons much harder to pull off.
** Unlike ''20XX'', there is only one Aug that changes your jump stat, and it's a Leg Core. Therefore, it's harder to break the platforming sections.
** The Patchwork Connector (only need three Core Augs of a set to get the SetBonus) does not return from ''20XX'', with its functionality appearing on the [[PowerAtAPrice Prototype Augs]] Patchwork Integrator(reduces damage the more Core Augs you equip) and Patchwork Overloader(increases CP cost of Core Augs).

* SetBonus: Collecting all 4 equipment of the set gives a significant bonus. For an example, Armatort set bonus makes you immune to all the hazards and Oxjack set bonus gives an additional airdash per jump.

** Glory Zones return from ''20XX'', though they're now more platforming-focused challenges, and give you a selection of rewards based on how many times you took damage throughout.

** Contemplation Shrines task you with clearing several waves of enemies in enclosed rooms. Like Glory Zones, the rewards you can get depend on how many times you get hit.

** The Vagrant Core Augs add a corruption meter that increases as you attack. Once it's filled, you overheat and are unable to attack or dash until it's empty again.
** Fatal Fury increases attack and power strength by one and can be taken up to five times, but it costs 10 maximum HP, multiplied by the number of Fatal Fury Augs you currently hold.

* SuspiciousVideoGameGenerosity: Right before you fight the final boss in Standard, you're given access to the shop, a slot machine, two Contemplation Shrines, and two Glory Zones, for one last chance to power yourself up before the big battle.

** Zen Ascent ignites tornadoes in Highvault. It also gets a height increase if it hits a cloud platform.

* ApocalypseHow: The scope of the danger changes through the course of the game. While at first you find yourself trying to avert [[ApocalypseHow/Class6 the destruction of the world]], you later find that [[spoiler: [[ApocalypseHow/Class3A the world has already been wiped clean of humanity due to junk-storms caused by poorly-understood use of gravity techology, leaving just the machines.]] ]] However, later story developments reveal that [[spoiler: any world you fail to save experiences [[ApocalypseHow/ClassX4 total universal obliteration at the hands of Midgard]], in service of preventing [[ApocalypseHow/ClassX5 a total multiversal collapse due to the existance of too many multiverses.]]]]

** If you bring the items for the [[spoiler:Imbued Chronovane to Highvault]], the level will change so that [[spoiler:there is a constant meteor shower in what is heavily implied to be the past. Instead of fighting you, Hoot Omega gains a new {{Boss Subtitle|s}}, "Protector of Elements", and protects you from the meteors as you progress through what would have been the boss arena in a normal run.]]
** If you wear [[spoiler:the full Vagrant Core set to the Deepverse or otherwise have the set bonus]], the level will [[spoiler:become corrupted, with swarms of corrupted bits regularly appearing. When you get to the end, Legacy lacks any BossSubtitles as he becomes a ZeroEffortBoss, doing nothing and dying in one hit.]]

** In Deepverse, [[spoiler:the alternate version, Legacy does not put up a fight and goes down in one hit.]]

* ConspicuousElectricObstacle: Deepverse has electric beams connecting electric nodes. It also has electric beam emitters that travel across the surfaces.

* InconvenientlyPlacedConveyorBelt: Conveyor belts appear in Dustria as a common stage hazard.

* CatchingSomeZs: Echobeast lets out Z letters when sleeping.

* LuckManipulationMechanic: The Parallelized Fate upgrade provides rerolls that let players change a dropped Aug to a different one.

* EscapeSequence: Like ''20XX'', you have to flee to an escape pod after you defeat the final boss.

* GameplayAndStoryIntegreation: All the runs you've been going on? [[spoilers:They're each in a different universe. The ones where you fail are eventually destroyed.]]

* PowerAtAPrice: Prototype Augments return, which grant you a significant advantage in exchange for a severe drawback. Prototype Resonator will give you more power at the same drawback while System Restore will usually remove it.

* {{Nerf}}: Main weapon stat ups are much rarer than in the previous game, making the old strategy of [[DumpStat dumping special weapons and energy]] to focus purely on buffing the main weapons much harder to pull off.

* UtilityWeapon: Like ''20XX'', some powers and techniques can help you navigate a stage more easily or give you an advantage in battle.

* SmashingHallwayTrapsOfDoom: Dustria has plenty of crushers moving up and down.

* SpikeBallsOfDoom: Pink and purple metallic spiky balls act as a common stage hazard.

** Crystal Wave and Freeze fusions can temporarily disable the fireball shooters in Burning Temple, and temporarily freeze Deepverse's disappearing platforms and Hoot Omega.

** Useless Garbage is an Aug that provides no benefits whatsoever. However, the Smuggler will take it for five Scrapbits (more than she offers for trading in other Augs), which you can trade for more useful Augs.