This is kinda weird. I was looking at some of the assets to see if I got all the power up items, and the only one I haven't seen yet is this one. I feel like I've played enough that I definitely would have seen it by now though. Does anyone know what it is? Is it some achievement one that I didn't unlock?
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Yeah, there are some unused stuff which you can't get in normal playthough. I also can tell there's a lot of item descriptions which may or may not be added in future updates. Maybe some of them were planned but scrapped entirely.
Some of them are (info taken from 0.45 game data) :
These does have a translation to english, but other languages as well.
Stone Skin - Reduce damage taken by 30%
Teleport - Teleport to a location slightly away from the player after taking damage. ("ダメージを受けた瞬間、プレイヤーから少し離れた位置に瞬間移動する。")
Split - Upon death, summons two different versions of itself when it die ("死亡の時、自身の2つの別バージョンを召喚する。")
Beam - Occasionally, a random beam attack that crosses the screen appears. ("畫面を橫切る光線攻撃が時折発生する。")
Invincible - occasionally enters a state of immune damage ("時折、全てのダメージを無効化する狀態になる。")
Vampirism - Attack will steal HP ("攻撃によりHPを吸収する。")
Bombing - Occasionally throws 3 explosives in a random direction, causing small-scale explosion damage when they touch a platform or player. ("時折、ランダムな方向に3つの爆弾を投げ、それらがプレイヤーあるいはプラットフォームに接觸すると、小範囲で爆発しダメージを與える。")
Healing - Hp will automatically recover. ("回復")
Corpse Explosion - Gradually spreads to the monsters in the room, causing them to delay for 1 second and then explode when they die, and the self itself carries the self-destruct effect. ("部屋の中のモンスターに徐々に伝播し、感染した死亡すると1秒後に爆発する。本體自體は自爆効果もある。")
Titan - Increase HP by 50%
And there's more, but you get the idea. We just don't know if it's still planned or scrapped and left as left-overs in data only.
As for achievements, there was a plan to give you two items which you can currently find in normal playthrough. One which give you an Oestrus effect on damage and one which gives same effect when entering new room. If I remember correctly, these was tied to number Vaginal sex, Anal Sex and Oral sex. Each was supposed to give an achievement and item.
