Use your mouse/cursor to control ailerons and rudder. You can’t crash…believe me…I tried! (Requires your web browser to have a Flash plug-in installed…though you may very well have it installed already.)
You can’t climb/descent or go anywhere either! Just loops you back like a crazed Andean.
If controlling altitude is your thing, go HERE. Press (and hold) left mouse button to go up, and release to go down.
680 is my best so far (in the 10 minutes that I’ve played).
720, 1 minute playing. 
[quote=“mkiogima”]
Played this before, but got 797 just now…