Due to the open development build nature of Yandere Simulator for much of its life, it's no surprise there's been plenty of bugs and glitches throughout, with this page covering some of the best.
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General
- Ragdoll physics in the Unity 4 engine is more of a suggestion than a reality. As a result, corpses can and often will do bizarre things, especially when you move them. With the game being ported to Unity 5, it's gotten worse.
- NPCs will often bounce the instant they go ragdoll as of Unity 5. How far they go seems to be completely random – they may barely move at all, or they might bounce several feet (making blood cleanup a real pain).
- Picking up a corpse while it is clipped into a large object (wall, locker, desk, etc) and spazzing out will cause it to stay in its distorted form as long as it is carried. Seeing Yan-chan carrying a dead student with a foot-long neck can be seen as either funny or creepy. Or both.
- Killing a student in Titan Mode results in their ragdoll code imploding on itself, resulting in "Titan Meatballs" that bounce around the area. The Dev clearly found it as funny as everyone else did, since he declare that he was never going to fix that bug. Sadly, an update to Titan Mode overhauls the whole mode to play like a mini-game more closely based on the source material, which inadvertently fixed the meatball glitch after less than a decade.
- Anytime a student's path-finding leaves them unable to properly route their destined location, leaving them spinning in circles, or as Jay from Kubz Scouts puts it: "twirling like an idiot".
Build Specific
June 1st 2016
- One bug made it possible to complete Kokona's task without needing to acquire her replacement uniform from Info-chan – you could place anything (or nothing) in the sewing machine. This video
demonstrates the bug using Oka's severed torso.
Unsorted
- One that became an Ascended Glitch is described in this video. The "Cinematic Camera Mode" allows the player to detach the camera and keep it stationary as Yan-chan moves around. YanDev immediately realized its potential and that YouTubers would love it, so he fixed the bug but mapped it to a button (Left-Alt).
- Blood doesn't always spawn where it logically should:
- Originally, it only appeared at ground level of the school and outside. It now spawns on all levels, but it still doesn't show up on stairs, making it much easier to clean up. note
- Leaving a body laying around on Friday overrides the Failure Is the Only Option Game Over and resets the week. If you also kidnap a girl on Friday, she'll still be in your basement on Monday morning.
- As mentioned in "Game-Breaking Bugs" above, killing Senpai at the top of stairs via the Cirno Mode or Bad-Time Mode Easter Eggs causes him to roll down the stairs below his aura. Once his aura is no longer near him, it is possible to dismember him. Doing this makes it possible to pass through the invisible wall at the school's front gate and walk around the street in front of the school, but you'll lose the ability to run and the teachers can now cross it too.
- A selfie feature for the phone camera was added in an early January 2019 update. However, the selfie feature is never treated as "suspicious activity", which overlaps with one of the perks for being in the Photography Club (Having the camera out, even in situations that would be classed as "suspicious activity", would not be considered as such).
