Marble race survival!

In marble race survival, 80 colored marbles try to avoid the end as long as possible. Who will do this the longest and win?

[@CyanFroggy]

Comments below may contain spoilers! Watch the video first.

[@CyanFroggy]

So now I noticed there is a spoiler at 12:38. Oops...

[@familiebb5666]

i have buildt room 4

[@CyanFroggy]

No but you builded a marble race like room 4