Algodoo

For the first time in over a year, these marbles are ready to rumble!
They'll be testing their mettle on remnants from courses of the past!
The first four to reach the end will have a single-elimination tournament
soon to decide the champion of IMR Season 1! Enjoy!

Note: This course is incredibly long, so it might lag your computer if the Hz
is high enough. (It sure lagged mine!) To fix this, either lower the Hz, zoom
in, or just don't watch the whole thing!
There may also be bugs I didn't catch. If you find one, comment and I'll
fix it as soon as I can.

The results will be in the comments since, apparently, that's the only place
stuff like that is allowed now.