How to improve your roller part 2 + second layer purple

Here are interestig videos about motor sharing and intake:
Lego Motor sharing • 6 Ways to use 1 Motor ... or • 3 Ways to Control 2 Ou...
If you can understand the concept fully, you may try to make a 2 or 3-
-21 Mechanical Principles • 21 Mechanical Principl...
-You may get ideas from past years’ IQ videos. • Hungry Hungry Hippo - ...
-Or get ideas about strategies or routes from this year’s videos. Don't underestimate the importance of routes. The same robot may have a 20-point difference because it uses different routes.