У вашего броузера проблема в совместимости с HTML5
In this video I address the issue of my scripts being leaked by the nibs from Dark Eccentric, and some other problems related to their usage.
Timestamp at which I start showing Undyne script: 3:57
While at it, releasing the updated version of Undyne script, which you have liked:
http://babblecase.com/16425529/undyne-script
Controls:
q: superjump
e: forward dash
r: ground spear
f: spear throw (can hold)
v: punch
g: ground pound (if 20 studs from ground)
p: select next song in queue
m: play/stop song
(p.s. don't use at Anti's)