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+# On canary build #2342
 Being 2D, this game runs relatively well, maintaining at least 30-40 FPS in most scenarios; Dipping in performance on level transitions and when many enemies are on the screen at once.
 
 As for graphical glitches: The initial (tutorial) area is monochrome (on a GTX 1070, white and black; on a Radeon R9 380, white and yellow), but areas afterward are colored fine. 
 
-![black and white tutorial](https://i.imgur.com/teDtDZm.png)
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+![black and white tutorial](https://i.imgur.com/teDtDZm.png)
+# On canary builds #2343–2359+
+The game can spontaneously hang on a black screen (like a loading screen, except it happens abruptly in the middle of play; not when loading is actually meant to occur), rendering it unplayable. This will happen regardless of `asynchronous GPU emulation`. The only difference is, during the hangup, `async` will cause the game to speed up past the set limit; whereas leaving this setting unchecked keeps the game locked at 100% speed.
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