Pretty fun! Does seem to have some glitching issues on my iPad Pro - particularly if I cross through a race flag the sound completely glitches and the frame rate stutters for a second.
EDIT: one further note, once the skier has achieved a certain speed, and it shows the flames underneath the skis, it's almost like the graphics are being rendered in separate loops. The skier maintains a consistent frame rate, but the trees seem to be rendered almost at a half frame rate, so they appear to be slightly flickery. I can't tell if this was done deliberately for optimization purposes but it was a bit distracting.
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