I have a bit of a bug. At speeds above 1200, the game becomes highly glitchy and will sometimes teleport my character into new hallways, or obstacles will entirely change into new ones out of nowhere. Perhaps fixing this would make it easier for some to play at the higher speeds better. I've had several times where I crashed because a wall teleported in front of me.
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There are a few lag issues which I've actually solved but need to update this version to include them etc. Soon!